~4.42 Million IP addresses observed from May to December 2012
To get raw lists of the data go to Download. For an explanation of what this data is and how it was obtained, see Paper.
Servicename  |
Product |
Version | Count |
Percent |
|---|---|---|---|---|
| smtp | 1227238 | 27.785 | ||
| smtp | Exim smtpd | 4.77 | 1139847 | 25.806 |
| smtp | Postfix smtpd | 443117 | 10.032 | |
| smtp | Exim smtpd | 300988 | 6.814 | |
| smtp | Exim smtpd | 4.80 | 251922 | 5.704 |
| smtp | Symantec Enterprise Security manager smtpd | 191806 | 4.343 | |
| smtp | IdeaSmtpServer smtpd | v0.80 | 142622 | 3.229 |
| smtp | Microsoft Exchange smtpd | 75041 | 1.699 | |
| smtp | Sendmail | 60242 | 1.364 | |
| no match | -/- | -/- | 55999 | 1.268 |
| smtp | Sendmail | 8.12.9/8.11.3 | 48784 | 1.104 |
| smtp | Exim smtpd | 4.69 | 46288 | 1.048 |
| smtp | Sendmail | 8.13.8/8.13.8 | 27922 | 0.632 |
| smtp | Sendmail | 8.14.3/8.14.3 | 24906 | 0.564 |
| smtp | Sendmail | 8.14.4/8.14.4 | 22291 | 0.505 |
| smtp | Alt-N MDaemon mail server | 12.5.6 | 22284 | 0.505 |
| smtp | Sendmail | 8.13.1/8.13.1 | 12193 | 0.276 |
| smtp | Exim smtpd | 4.72 | 11362 | 0.257 |
| smtp | Sendmail | 8.14.5/8.14.5 | 10814 | 0.245 |
| smtp | rblsmtpd wrapped smtpd | 9612 | 0.218 | |
| smtp | Sendmail | 8.14.3/8.12.10 | 9291 | 0.21 |
| smtp | Microsoft ESMTP | 6.0.3790.4675 | 8734 | 0.198 |
| smtp | MDaemon smtpd | 11.0.3 | 7931 | 0.18 |
| smtp | Exim smtpd | 4.76 | 7795 | 0.176 |
| smtp | mailfront smtpd | 6550 | 0.148 | |
| smtp | Sendmail | 8.12.11.20060614/8.12.10 | 6117 | 0.138 |
| smtp | Exim smtpd | 4.74 | 5783 | 0.131 |
| nagios-nsca | Nagios NSCA | 4891 | 0.111 | |
| smtp | Sendmail | 8.13.7/8.13.7 | 4883 | 0.111 |
| smtp | Sendmail | 8.14.2/8.14.2 | 4850 | 0.11 |
| smtp | Barracuda Networks Spam Firewall smtpd | 4775 | 0.108 | |
| smtp | Sendmail | 8.13.8+Sun/8.13.8 | 4504 | 0.102 |
| smtp | MailEnable smptd | 1.986-- | 4273 | 0.097 |
| smtp | Sendmail | 8.13.6.20060614/8.13.6 | 3873 | 0.088 |
| smtp | Sendmail | 8.14.1/8.13.8 | 3564 | 0.081 |
| smtp | Exim smtpd | 4.71 | 3557 | 0.081 |
| smtp | MDaemon smtpd | 12.5.6 | 3438 | 0.078 |
| smtp | Sendmail | 8.12.11.20060308/8.12.11 | 3121 | 0.071 |
| smtp | MailEnable smptd | 5.10-- | 3046 | 0.069 |
| smtp | Exim smtpd | 4.63 | 3002 | 0.068 |
| smtp | Exim smtpd | 4.67 | 2915 | 0.066 |
| smtp | Sendmail | 8.14.1/8.14.1 | 2760 | 0.062 |
| smtp | Sendmail | 8.14.4/8.14.3 | 2750 | 0.062 |
| smtp | Sendmail | 8.14.4/8.14.2 | 2727 | 0.062 |
| smtp | Citadel smtpd | 2638 | 0.06 | |
| smtp | Sendmail | 8.13.6/8.13.6 | 2634 | 0.06 |
| smtp | MDaemon smtpd | 11.0.0 | 2611 | 0.059 |
| smtp | MailEnable smptd | 4.26-- | 2504 | 0.057 |
| chat | AIM or ICQ server | 2492 | 0.056 | |
| smtp | Sendmail | 8.14.5/8.14.4 | 2447 | 0.055 |
| smtp | Sendmail | 8.11.6/8.11.6 | 2254 | 0.051 |
| smtp | Sendmail | 8.12.10/8.12.10 | 2066 | 0.047 |
| smtp | NetBox smtpd | 2041 | 0.046 | |
| smtp | Sendmail | 8.12.11/8.12.11 | 1923 | 0.044 |
| smtp | Kerio Connect smtpd | 7.4.1 | 1843 | 0.042 |
| smtp | Sendmail | 8.13.4/8.13.4 | 1738 | 0.039 |
| smtp | Exim smtpd | 4.73 | 1671 | 0.038 |
| smtp | MDaemon smtpd | 10.0.0 | 1612 | 0.036 |
| smtp | Sendmail | 8.14.2/8.14.3/[SAKURA-WEB]/20080708 | 1580 | 0.036 |
| smtp | MailEnable smptd | 6.03-- | 1411 | 0.032 |
| smtp | MailEnable smptd | 6.5-- | 1395 | 0.032 |
| smtp | MailEnable smptd | 6.0-- | 1332 | 0.03 |
| smtp | Kerio Connect smtpd | 7.1.0 patch 1 | 1315 | 0.03 |
| smtp | MDaemon smtpd | 12.5.4 | 1279 | 0.029 |
| smtp | Microsoft ESMTP | 6.0.3790.3959 | 1278 | 0.029 |
| smtp | Sendmail | 8.13.3/8.13.3 | 1219 | 0.028 |
| smtp | Sendmail | 8.13.8/8.13.1 | 1164 | 0.026 |
| smtp | Kerio Connect smtpd | 7.4.2 | 1143 | 0.026 |
| smtp | Sendmail | 8.13.8/8.12.11 | 1104 | 0.025 |
| smtp | IMail NT-ESMTP | 11.5 1-1 | 1091 | 0.025 |
| smtp | Sendmail | 8.14.3/8.14.2 | 1079 | 0.024 |
| smtp | Sendmail | 8.14.5/8.13.6 | 1059 | 0.024 |
| smtp | Kerio Connect smtpd | 7.4.0 | 1057 | 0.024 |
| smtp | Kerio Connect smtpd | 7.3.2 | 1053 | 0.024 |
| smtp | Sendmail | 8.13.1/8.13.3 | 1046 | 0.024 |
| smtp | MailEnable smptd | 5.51-- | 1021 | 0.023 |
| smtp | MailEnable smptd | 4.14-- | 1013 | 0.023 |
| smtp | MDaemon smtpd | 10.1.1 | 996 | 0.023 |
| smtp | MailEnable smptd | 1.983-- | 954 | 0.022 |
| smtp | MDaemon smtpd | 9.6.1 | 933 | 0.021 |
| smtp | Eudora EIMS X smtpd | 3.3.9 | 915 | 0.021 |
| smtp | Sendmail | 8.13.6.20060614/8.13.1 | 897 | 0.02 |
| http | 861 | 0.019 | ||
| smtp | MailEnable smptd | 6.53-- | 858 | 0.019 |
| smtp | Sendmail | 8.11.6/8.11.0 | 856 | 0.019 |
| smtp | MDaemon smtpd | 10.1.2 | 840 | 0.019 |
| smtp | Sendmail | 8.13.6/8.13.1 | 813 | 0.018 |
| smtp | IceWarp smtpd | 9.3.1 | 798 | 0.018 |
| smtp | Exim smtpd | 4.80.1 | 791 | 0.018 |
| smtp | Kerio Connect smtpd | 7.4.3 | 788 | 0.018 |
| smtp | Sendmail | 8.12.11.20060614 | 771 | 0.017 |
| smtp | MailEnable smptd | 3.62-- | 745 | 0.017 |
| smtp | Sendmail | 8.11.7p1+Sun/8.11.7 | 736 | 0.017 |
| smtp | hMailServer | 711 | 0.016 | |
| smtp | MDaemon smtpd | 10.1.0 | 699 | 0.016 |
| smtp | Sendmail | 8.14.0/8.14.0 | 686 | 0.016 |
| smtp | MailEnable smptd | 5.11-- | 679 | 0.015 |
| smtp | Sendmail | 8.13.7+Sun/8.13.7 | 675 | 0.015 |
| smtp | Sendmail | 8.12.10+Sun/8.12.10 | 674 | 0.015 |
| smtp | hMailServer smtpd | 671 | 0.015 | |
| smtp | Sendmail | 8.13.6/8.12.10 | 670 | 0.015 |
| smtp | Kerio Connect smtpd | 7.3.1 patch 2 | 662 | 0.015 |
| smtp | MailEnable smptd | 6.01-- | 645 | 0.015 |
| smtp | MDaemon smtpd | 9.6.6 | 631 | 0.014 |
| smtp | IceWarp smtpd | 9.1.0 | 628 | 0.014 |
| smtp | Sendmail | 8.14.3/8.14.3/Debian-9.4 | 620 | 0.014 |
| smtp | Sendmail | 8.12.9/8.12.9 | 618 | 0.014 |
| smtp | Sendmail | 8.12.8/8.12.8 | 618 | 0.014 |
| smtp | Sendmail | 8.14.5/8.13.1 | 605 | 0.014 |
| smtp | Exim smtpd | 4.70 | 596 | 0.013 |
| smtp | MDaemon smtpd | 12.5.3 | 594 | 0.013 |
| smtp | Sendmail | 8.14.3/8.14.3/Debian-5+lenny1 | 569 | 0.013 |
| smtp | Sendmail | 8.14.5/8.13.4 | 568 | 0.013 |
| smtp | Merak Mail Server smtpd | 8.0.3 | 562 | 0.013 |
| smtp | Surgemail smtpd | 5.3h2-2 | 556 | 0.013 |
| smtp | MDaemon smtpd | 9.5.2 | 554 | 0.013 |
| smtp | MailEnable smptd | 6.02-- | 546 | 0.012 |
| smtp | MailEnable smptd | 0-6.03- | 532 | 0.012 |
| smtp | Sendmail | 8.14.2/8.14.2/Kp | 520 | 0.012 |
| smtp | MDaemon smtpd | 13.0.3 | 513 | 0.012 |
| smtp | MDaemon smtpd | 12.0.3 | 513 | 0.012 |
| smtp | MailEnable smptd | 0-1.87- | 508 | 0.012 |
| smtp | MailEnable smptd | 0-3.63- | 503 | 0.011 |
| smtp | Sendmail | 8.14.4/8.13.8 | 486 | 0.011 |
| smtp | Microsoft Exchange 2010 smtpd | 476 | 0.011 | |
| smtp | Surgemail smtpd | 5.2a-1 | 471 | 0.011 |
| smtp | MailEnable smptd | 6.52-- | 469 | 0.011 |
| smtp | MailEnable smptd | 1.981-- | 461 | 0.01 |
| smtp | Sendmail | 8.12.6/8.12.6 | 459 | 0.01 |
| http | lighttpd | 1.4.29 | 459 | 0.01 |
| smtp | IceWarp smtpd | 9.4.2 | 457 | 0.01 |
| smtp | Sendmail | 8.11.6/8.11.3 | 452 | 0.01 |
| smtp | MDaemon smtpd | 9.5.1 | 449 | 0.01 |
| smtp | MDaemon smtpd | 12.0.4 | 446 | 0.01 |
| smtp | Cisco PIX sanitized smtpd | 440 | 0.01 | |
| smtp | XMail SMTP server | 1.27 | 433 | 0.01 |
| smtp | MailEnable smptd | 0-2.53- | 429 | 0.01 |
| smtp | Sendmail | 8.13.8/8.13.6 | 422 | 0.01 |
| smtp | IMail NT-ESMTP | 11.03 1-1 | 419 | 0.009 |
| smtp | Sendmail | 8.11.6/8.10.1 | 417 | 0.009 |
| http | lighttpd | 1.4.19 | 412 | 0.009 |
| smtp | MailEnable smptd | 6.56-- | 405 | 0.009 |
| smtp | MDaemon smtpd | 9.6.2 | 403 | 0.009 |
| smtp | Kerio MailServer smtpd | 399 | 0.009 | |
| smtp | MailEnable smptd | 4.23-- | 396 | 0.009 |
| smtp | Sendmail | 8.13.4/8.12.11 | 390 | 0.009 |
| smtp | Axigen smtpd | 386 | 0.009 | |
| smtp | MailEnable smptd | 6.57-- | 384 | 0.009 |
| smtp | MailEnable smptd | 5.53-- | 379 | 0.009 |
| smtp | Sendmail | 8.12.8p1/8.12.8 | 377 | 0.009 |
| smtp | Kerio Connect smtpd | 7.1.3 | 375 | 0.008 |
| smtp | IceWarp smtpd | 10.3.5 | 374 | 0.008 |
| smtp | Kerio Connect smtpd | 7.1.1 | 370 | 0.008 |
| smtp | Communigate Pro SMTP | 5.4.4 | 369 | 0.008 |
| smtp | IMail NT-ESMTP | 11.01 1-1 | 366 | 0.008 |
| smtp | Sendmail | 8.13.6/8.13.6/PURDUE_CS-2.0 | 365 | 0.008 |
| smtp | Sendmail | 8.12.9p2/8.12.9 | 365 | 0.008 |
| smtp | MDaemon smtpd | 12.5.2 | 363 | 0.008 |
| smtp | Exim smtpd | 4.62 | 363 | 0.008 |
| smtp | Sendmail | 8.14.5/8.14.3 | 362 | 0.008 |
| smtp | XMail SMTP server | 1.25 | 361 | 0.008 |
| smtp | Sendmail | 8.10.2/8.10.2 | 354 | 0.008 |
| smtp | Sendmail | 8.14.4/8.13.6 | 352 | 0.008 |
| smtp | Symantec Messaging Gateway smtpd | 351 | 0.008 | |
| smtp | Sendmail | 8.12.10/8.11.3 | 350 | 0.008 |
| smtp | Surgemail smtpd | 6.1c-1 | 342 | 0.008 |
| smtp | Sendmail | 8.14.4/8.14.5 | 342 | 0.008 |
| smtp | Sendmail | 8.12.11.20060614/8.12.11 | 334 | 0.008 |
| smtp | Kerio Connect smtpd | 7.3.0 | 330 | 0.007 |
| smtp | Kerio Connect smtpd | 7.0.1 | 325 | 0.007 |
| smtp | Sendmail | 8.14.4+Sun/8.14.4 | 321 | 0.007 |
| smtp | Sendmail | 8.13.6.20060614/8.12.6 | 321 | 0.007 |
| smtp | Sendmail | 8.11.6/8.11.7 | 316 | 0.007 |
| smtp | MailEnable smptd | 0-4.26- | 315 | 0.007 |
| smtp | Exim smtpd | 4.68 | 313 | 0.007 |
| smtp | Microsoft ESMTP | 6.0.3790.1830 | 312 | 0.007 |
| smtp | MDaemon smtpd | 9.0.4 | 307 | 0.007 |
| smtp | Sendmail | 8.11.7p3+Sun/8.11.7 | 305 | 0.007 |
| smtp | MDaemon smtpd | 10.0.5 | 305 | 0.007 |
| smtp | MailEnable smptd | 6.03--6.03 | 305 | 0.007 |
| smtp | IceWarp smtpd | 10.4.3 | 304 | 0.007 |
| smtp | Communigate Pro SMTP | 5.1.12 | 300 | 0.007 |
| smtp | MDaemon smtpd | 10.0.2 | 299 | 0.007 |
| smtp-proxy | ESET NOD32 anti-virus smtp proxy | 292 | 0.007 | |
| smtp | IMail NT-ESMTP | 12.2.0.169 1-1 | 289 | 0.007 |
| smtp | IMail NT-ESMTP | 11.5 2-1 | 288 | 0.007 |
| smtp | MailEnable smptd | 6.56--6.56 | 285 | 0.006 |
| smtp | XMail SMTP server | 1.26 | 284 | 0.006 |
| smtp | MailEnable smptd | 0-6.54- | 282 | 0.006 |
| smtp | MailEnable smptd | 6.60-- | 281 | 0.006 |
| smtp | MailEnable smptd | 0-5.11- | 278 | 0.006 |
| smtp | Sendmail | 8.13.6/8.11.6 | 277 | 0.006 |
| http | Microsoft IIS httpd | 277 | 0.006 | |
| smtp | MDaemon smtpd | 12.0.1 | 274 | 0.006 |
| smtp | MDaemon smtpd | 11.0.2 | 272 | 0.006 |
| smtp | IMail NT-ESMTP | 11.02 1-1 | 271 | 0.006 |
| smtp | MailEnable smptd | 4.22-- | 270 | 0.006 |
| smtp | Kerio Connect smtpd | 8.0.0 | 268 | 0.006 |
| smtp | MDaemon smtpd | 9.6.4 | 266 | 0.006 |
| smtp | Webwasher CSM Suite smtpd | 262 | 0.006 | |
| smtp | MDaemon smtpd | 9.6.5 | 262 | 0.006 |
| smtp | Surgemail smtpd | 3.5b3-3 | 261 | 0.006 |
| smtp | Exim smtpd | 4.52 | 260 | 0.006 |
| smtp | Code-Crafters Ability Mail Server smtpd | 2.71 | 260 | 0.006 |
| smtp | Sendmail | 8.11.0/8.11.1 | 258 | 0.006 |
| smtp | MDaemon smtpd | 8.1.4 | 258 | 0.006 |
| smtp | MDaemon smtpd | 13.0.2 | 256 | 0.006 |
| smtp | MailEnable smptd | --3.61 | 256 | 0.006 |
| smtp | Sendmail | 8.12.9p2/8.12.6 | 255 | 0.006 |
| smtp | Surgemail smtpd | 3.7b6-6 | 253 | 0.006 |
| smtp | MDaemon smtpd | 9.5.5 | 252 | 0.006 |
| smtp | MDaemon smtpd | 8.1.3 | 251 | 0.006 |
| smtp | MDaemon smtpd | 9.5.6 | 248 | 0.006 |
| smtp | Sendmail | 8.12.11.20060308/8.12.11/SuSE | 246 | 0.006 |
| smtp | MailEnable smptd | 6.54--6.54 | 245 | 0.006 |
| smtp | Sendmail | 8.14.3/8.13.8 | 242 | 0.005 |
| smtp | MailEnable Enterprise smptd | 3.53 | 242 | 0.005 |
| smtp | IMail NT-ESMTP | 12.1.0.270 1-1 | 237 | 0.005 |
| smtp | MDaemon smtpd | 12.5.5 | 236 | 0.005 |
| smtp | Sendmail | 8.11.6+Sun/8.11.6 | 235 | 0.005 |
| smtp | Sendmail | 8.13.8/8.13.8/clisys_sendmail_client | 231 | 0.005 |
| smtp | Microsoft ESMTP | 7.5.7601.17514 | 230 | 0.005 |
| smtp | Microsoft ESMTP | 5.0.2195.7381 | 230 | 0.005 |
| smtp | MDaemon smtpd | 9.0.1 | 230 | 0.005 |
| smtp | MailEnable smptd | 0-3.62- | 228 | 0.005 |
| smtp | Kerio Connect smtpd | 7.2.2 | 226 | 0.005 |
| smtp | Sendmail | 8.13.4/8.13.4/Debian-3sarge3 | 224 | 0.005 |
| smtp | Sendmail | 8.13.6+Sun/8.13.6 | 223 | 0.005 |
| smtp | MDaemon smtpd | 12.0.0 | 222 | 0.005 |
| smtp | Sendmail | 8.12.5/8.12.5 | 221 | 0.005 |
| smtp | Surgemail smtpd | 3.9e-1 | 220 | 0.005 |
| smtp | MailEnable smptd | 0-5.51- | 220 | 0.005 |
| smtp | Exim smtpd | 4.60 | 219 | 0.005 |
| smtp | Sendmail | 8.13.8/8.12.8 | 217 | 0.005 |
| smtp | MDaemon smtpd | 12.5.1 | 217 | 0.005 |
| smtp | MAILsweeper SMTP proxy | 216 | 0.005 | |
| smtp | Sendmail | 8.13.5.20060308/8.13.5/Debian-3ubuntu1 | 215 | 0.005 |
| smtp | Kerio Connect smtpd | 7.3.3 | 214 | 0.005 |
| smtp | MDaemon smtpd | 10.0.4 | 210 | 0.005 |
| smtp | Exim smtpd | 4.75 | 209 | 0.005 |
| smtp | MailEnable smptd | 5.5-- | 205 | 0.005 |
| smtp | Kerio Connect smtpd | 7.2.4 | 204 | 0.005 |
| smtp | Sendmail | 8.14.2/8.13.8 | 201 | 0.005 |
| smtp | Sendmail | 8.13.6.20060614/8.12.11 | 199 | 0.005 |
| smtp | Kerio Connect smtpd | 7.3.1 | 199 | 0.005 |
| smtp | XMail SMTP server | 1.24 | 198 | 0.004 |
| smtp | Sendmail | 8.14.2/8.13.6 | 197 | 0.004 |
| smtp | Sendmail | 8.13.4/8.13.4/Debian-3 | 197 | 0.004 |
| smtp | Surgemail smtpd | 6.0a5-5 | 195 | 0.004 |
| smtp | IceWarp smtpd | 10.0.7 | 195 | 0.004 |
| smtp | Postfix smtpd | 2.5.6 | 192 | 0.004 |
| smtp | MailEnable smptd | 4.26--4.26 | 190 | 0.004 |
| smtp | qpsmtpd | 0.40 | 189 | 0.004 |
| smtp | IA Mailserver smtpd | 186 | 0.004 | |
| smtp | MailEnable smptd | 0-3.6- | 184 | 0.004 |
| smtp | Communigate Pro SMTP | 5.0.14 | 183 | 0.004 |
| http | Microsoft HTTPAPI httpd | 2.0 | 183 | 0.004 |
| smtp | Sendmail | 8.13.8/8.13.8/Debian-3 | 180 | 0.004 |
| smtp | Sendmail | 8.14.2/8.12.11 | 178 | 0.004 |
| smtp | IceWarp smtpd | 10.4.1 | 177 | 0.004 |
| smtp | MailEnable smptd | 5.52-- | 176 | 0.004 |
| smtp | Kerio Connect smtpd | 7.0.2 | 175 | 0.004 |
| smtp | IMail NT-ESMTP | 12.0.0.384 1-1 | 175 | 0.004 |
| smtp | Sendmail | 8.13.6/8.12.11 | 173 | 0.004 |
| smtp | Surgemail smtpd | 6.0a4-4 | 171 | 0.004 |
| smtp | Merak Mail Server smtpd | 8.3.15-1 | 171 | 0.004 |
| smtp | Kerio Connect smtpd | 7.1.4 | 171 | 0.004 |
| smtp | IceWarp smtpd | 9.4.0 | 171 | 0.004 |
| smtp | MDaemon smtpd | 9.6.3 | 170 | 0.004 |
| smtp | Sendmail | 8.14.1/8.14.1/ull-ucs-client_1.7 | 168 | 0.004 |
| smtp | Eudora EIMS X smtpd | 3.3.7 | 166 | 0.004 |
| smtp | MailEnable smptd | 1.96-- | 164 | 0.004 |
| http | thttpd | 2.24 | 163 | 0.004 |
| smtp | Sendmail | 8.11.1 | 162 | 0.004 |
| smtp | Surgemail smtpd | 5.3h-1 | 160 | 0.004 |
| smtp | MailEnable smptd | 0-2.52- | 160 | 0.004 |
| smtp | MailEnable smptd | 0-2.38- | 160 | 0.004 |
| smtp | Sendmail | 8.12.11.20060308/3.7W | 158 | 0.004 |
| smtp | Kerio Connect smtpd | 7.1.2 | 158 | 0.004 |
| smtp | ArGoSoft Mail Server Pro | 1.8.9.6 | 158 | 0.004 |
| smtp | IceWarp smtpd | 9.2.1 | 157 | 0.004 |
| smtp | Sendmail | 8.13.5/8.13.5 | 155 | 0.004 |
| smtp | Sendmail | 8.14.3/8.12.9 | 154 | 0.003 |
| smtp | MailEnable smptd | 6.55-- | 153 | 0.003 |
| http | GoAhead-Webs httpd | 153 | 0.003 | |
| smtp | DeskNow smtpd | 150 | 0.003 | |
| smtp | Surgemail smtpd | 3.8k4-4 | 148 | 0.003 |
| smtp | Sendmail | 8.14.4/8.13.1 | 147 | 0.003 |
| smtp | Sendmail | 8.11.1/8.11.1 | 147 | 0.003 |
| smtp | MDaemon smtpd | 12.5.0 | 147 | 0.003 |
| smtp | MailEnable smptd | 0-4.23- | 147 | 0.003 |
| smtp | Sendmail | 8.12.11 | 146 | 0.003 |
| smtp | Sendmail | 8.14.3/8.14.4 | 145 | 0.003 |
| smtp | Sendmail | 8.12.11/8.12.10 | 145 | 0.003 |
| smtp | IceWarp smtpd | 10.1.2 | 143 | 0.003 |
| smtp | Sendmail | 8.13.3+Sun/8.13.3 | 142 | 0.003 |
| smtp | Kerio Connect smtpd | 7.2.3 patch 1 | 142 | 0.003 |
| smtp | Kerio Connect smtpd | 7.0.0 | 142 | 0.003 |
| smtp | Sendmail | 8.12.10/8.12.8 | 139 | 0.003 |
| smtp | Unrecognized SMTP service | 138 | 0.003 | |
| smtp | MailEnable smptd | 4.25-- | 138 | 0.003 |
| smtp | MailEnable smptd | --3.63 | 138 | 0.003 |
| ssh | Dropbear sshd | 0.52 | 137 | 0.003 |
| smtp | MailEnable smptd | 5.51--5.51 | 137 | 0.003 |
| smtp | Sendmail | 8.14.2/8.14.2/[SAKURA-WEB]/20080708 | 135 | 0.003 |
| smtp | MailEnable smptd | 0-6.56- | 135 | 0.003 |
| smtp | MailEnable smptd | --3.62 | 134 | 0.003 |
| smtp | MailEnable smptd | 0-6.51- | 134 | 0.003 |
| smtp | IceWarp smtpd | 10.3.1 | 134 | 0.003 |
| smtp | XMail SMTP server | 1.22 | 133 | 0.003 |
| smtp | MDaemon smtpd | 10.0.1 | 133 | 0.003 |
| smtp | Sendmail | 8.12.9p2/8.12.3 | 130 | 0.003 |
| smtp | MailEnable smptd | 0-5.10- | 129 | 0.003 |
| smtp | IMail NT-ESMTP | 11.03 2-1 | 129 | 0.003 |
| smtp | Sendmail | 8.13.3 rev 1.003 | 126 | 0.003 |
| smtp | Sendmail | 8.13.1/8.12.9 | 126 | 0.003 |
| smtp | Sendmail | 1.0/1.0 | 126 | 0.003 |
| smtp | Sendmail | 8.11.0/8.11.0 | 125 | 0.003 |
| smtp | MailEnable smptd | 6.51-- | 124 | 0.003 |
| smtp | MailEnable smptd | 0-6.0- | 124 | 0.003 |
| smtp | Kerio Connect smtpd | 7.2.3 | 124 | 0.003 |
| smtp | Alt-N MDaemon mail server | 8.0.2 | 123 | 0.003 |
| smtp | Sendmail | 8.12.10/8.12.10/DCN | 122 | 0.003 |
| smtp | MDaemon smtpd | 13.0.0 | 122 | 0.003 |
| smtp | Sendmail | 8.14.5/8.12.8 | 121 | 0.003 |
| smtp | Sendmail | 8.13.4+Sun/8.13.3 | 120 | 0.003 |
| smtp | Sendmail | 8.14.1/8.13.3 | 119 | 0.003 |
| smtp | Sendmail | 8.12.3/8.12.3/Debian-7.2 | 119 | 0.003 |
| smtp | MDaemon smtpd | 11.0.1 | 119 | 0.003 |
| smtp | ArGoSoft Mail Server Pro | 1.8 | 119 | 0.003 |
| smtp | Sendmail | 8.13.6.20060614/8.13.6/PURDUE_CS-2.0 | 118 | 0.003 |
| smtp | Sendmail | 8.14.3/8.14.1 | 117 | 0.003 |
| smtp | MailEnable smptd | 5.07-- | 117 | 0.003 |
| smtp | IdeaSmtpServer smtpd | v0.70 | 117 | 0.003 |
| smtp | MailEnable smptd | 6.59-- | 116 | 0.003 |
| smtp | Communigate Pro SMTP | 5.3.5 | 116 | 0.003 |
| smtp | Sendmail | 8.14.3/8.14.3/Debian-9.1ubuntu1 | 115 | 0.003 |
| smtp | Kerio Connect smtpd | 7.2.0 | 114 | 0.003 |
| smtp | Sendmail | 8.12.10/8.12.11/SuSE | 113 | 0.003 |
| smtp | MailEnable smptd | 6.53--6.53 | 113 | 0.003 |
| smtp | MailEnable smptd | 0-3.04- | 113 | 0.003 |
| smtp | Sendmail | 8.13.1/8.13.4 | 112 | 0.003 |
| smtp | qpsmtpd | 0.82 | 112 | 0.003 |
| smtp | MailEnable smptd | 6.0--6.0 | 112 | 0.003 |
| smtp | MailEnable smptd | 0-3.61- | 109 | 0.002 |
| smtp | Sendmail | 8.14.2/8.14.4 | 108 | 0.002 |
| smtp | MailEnable smptd | 4.17-- | 108 | 0.002 |
| smtp | MailEnable smptd | 0-6.02- | 108 | 0.002 |
| smtp | Kerio Connect smtpd | 7.0.2 patch 1 | 108 | 0.002 |
| smtp | IMail NT-ESMTP | 11.01 2-1 | 107 | 0.002 |
| smtp | MailEnable smptd | 6.63--6.63 | 106 | 0.002 |
| smtp | Sendmail | 8.12.3/8.12.3/Debian-6.6 | 105 | 0.002 |
| smtp | IMail NT-ESMTP | 11.5 3-1 | 105 | 0.002 |
| smtp | Sun Java System Messaging Server smtpd | 64 | 104 | 0.002 |
| smtp | Sendmail | 8.12.3/8.12.3 | 104 | 0.002 |
| smtp | Communigate Pro SMTP | 5.4.5 | 104 | 0.002 |
| ssh | 103 | 0.002 | ||
| smtp | Sendmail | 8.14.1/8.13.6 | 101 | 0.002 |
| smtp | MDaemon smtpd | 9.0.0 | 101 | 0.002 |
| smtp | MailEnable smptd | 0-6.01- | 101 | 0.002 |
| smtp | MailEnable smptd | 4.16-- | 100 | 0.002 |
| smtp | Sendmail | 8.12.11.20060614/8.12.9 | 99 | 0.002 |
| smtp | Sendmail | 8.12.10+Sun/8.12.9 | 99 | 0.002 |
| smtp | Microsoft ESMTP | 5.0.2195.6713 | 99 | 0.002 |
| smtp | Kerio Connect smtpd | 7.0.0 patch 1 | 99 | 0.002 |
| smtp | Sendmail | 8.13.4/8.13.4/Debian-3sarge1 | 98 | 0.002 |
| smtp | Sendmail | 8.13.4/8.13.3 | 98 | 0.002 |
| vnc | VNC | 97 | 0.002 | |
| smtp | Sendmail | 8.14.4/8.13.5 | 97 | 0.002 |
| smtp | MailEnable smptd | 6.70-- | 97 | 0.002 |
| smtp | MailEnable smptd | 0-3.53- | 97 | 0.002 |
| smtp | IMail NT-ESMTP | 12.0.0.348 1-1 | 96 | 0.002 |
| smtp | MDaemon smtpd | 12.0.2 | 95 | 0.002 |
| smtp | MailEnable smptd | 0-6.52- | 95 | 0.002 |
| http | CCProxy | 95 | 0.002 | |
| smtp | Sendmail | 8.14.4/8.12.9 | 94 | 0.002 |
| smtp | Sendmail | 8.11.6/8.11.2 | 92 | 0.002 |
| smtp | MailEnable smptd | 6.72-- | 92 | 0.002 |
| smtp | Sendmail | 8.14.3/8.13.4 | 91 | 0.002 |
| smtp | Sendmail | 8.13.3 rev 1.004 | 91 | 0.002 |
| smtp | MailEnable smptd | 6.5--6.5 | 91 | 0.002 |
| smtp | MailEnable smptd | 5.03-- | 91 | 0.002 |
| smtp | Kerio Connect smtpd | 7.1.4 patch 1 | 91 | 0.002 |
| smtp | Kerio Connect smtpd | 7.1.0 | 91 | 0.002 |
| smtp | Sendmail | 8.14.5/8.14.2 | 90 | 0.002 |
| smtp | Sendmail | 8.12.11.20060308/8.12.10 | 90 | 0.002 |
| smtp | Microsoft ESMTP | 7.0.6002.18222 | 90 | 0.002 |
| smtp | MailEnable smptd | 1.9-- | 90 | 0.002 |
| smtp | MailEnable smptd | 0-5.53- | 90 | 0.002 |
| smtp | MailEnable smptd | 6.65-- | 88 | 0.002 |
| smtp | IceWarp smtpd | 10.3.4 | 88 | 0.002 |
| smtp | Sendmail | 8.11.6p2/8.11.6 | 87 | 0.002 |
| smtp | Sendmail | 8.14.3/8.13.6 | 85 | 0.002 |
| smtp | Sendmail | 8.14.2/8.14.1 | 85 | 0.002 |
| smtp | Sendmail | 8.13.8/8.13.4 | 85 | 0.002 |
| smtp | MailEnable smptd | 4.0-- | 85 | 0.002 |
| smtp | MDaemon smtpd | 13.0.1 | 84 | 0.002 |
| smtp | Surgemail smtpd | 5.3b2-2 | 83 | 0.002 |
| smtp | MDaemon smtpd | 8.0.3 | 83 | 0.002 |
| smtp | MailEnable smptd | 0-4.22- | 83 | 0.002 |
| smtp | ArGoSoft Mail Server Pro | 1.8.9.5 | 83 | 0.002 |
| smtp | Sendmail | 8.12.2/8.12.2 | 81 | 0.002 |
| smtp | Microsoft ESMTP | 7.0.6002.18264 | 81 | 0.002 |
| smtp | MailEnable smptd | 4.22--4.22 | 81 | 0.002 |
| smtp | MailEnable smptd | 1.95-- | 81 | 0.002 |
| smtp | ALT-N SecurityGateway smtpd | 2.0.7 | 81 | 0.002 |
| smtp | Sendmail | 8.12.9+Sun/8.12.9 | 80 | 0.002 |
| smtp | Sendmail | 8.11.7p3+Sun/8.11.6 | 80 | 0.002 |
| smtp | Code-Crafters Ability Mail Server smtpd | 2.72 | 80 | 0.002 |
| smtp | Kerio Connect smtpd | 7.2.0 patch 1 | 79 | 0.002 |
| smtp | Sendmail | 8.11.5/8.11.5 | 78 | 0.002 |
| smtp | Communigate Pro SMTP | 4.1.8 | 78 | 0.002 |
| smtp | Sendmail | 8.14.3/8.13.5 | 77 | 0.002 |
| smtp | Sendmail | 8.13.7/8.13.4 | 77 | 0.002 |
| smtp | Sendmail | 8.13.6/8.12.9 | 77 | 0.002 |
| smtp | MDaemon smtpd | 8.1.1 | 77 | 0.002 |
| smtp | MailEnable smptd | 5.0-- | 77 | 0.002 |
| pop3 | MailEnable POP3 Server | 77 | 0.002 | |
| smtp | Sendmail | 8.13.1/8.12.11 | 76 | 0.002 |
| smtp | Sendmail | 8.11.3/8.11.3 | 76 | 0.002 |
| smtp | Novell NetWare GroupWise Internet Agent smtpd | 75 | 0.002 | |
| smtp | IMail NT-ESMTP | 11.0 1-1 | 75 | 0.002 |
| smtp | Sendmail | 8.14.4/8.14.0 | 74 | 0.002 |
| smtp | MDaemon smtpd | 9.5.4 | 74 | 0.002 |
| smtp | MailEnable smptd | 4.23--4.23 | 74 | 0.002 |
| smtp | MailEnable smptd | 0-6.5- | 74 | 0.002 |
| smtp | AnNyung smtpd | 8.14.3-1 | 74 | 0.002 |
| smtp | MDaemon smtpd | 8.1.5 | 73 | 0.002 |
| smtp | Communigate Pro SMTP | 5.1.16 | 73 | 0.002 |
| smtp | Sendmail | 8.10.2+Sun/8.10.2 | 72 | 0.002 |
| smtp | Sendmail | 8.13.8/8.13.8/Debian-3+etch1 | 71 | 0.002 |
| smtp | IMail NT-ESMTP | 12.1.0.270 2-1 | 70 | 0.002 |
| smtp | Surgemail smtpd | 4.0u4-4 | 69 | 0.002 |
| smtp | MailEnable smptd | 0-6.60- | 69 | 0.002 |
| smtp | Kerio Connect smtpd | 7.0.0 patch 2 | 69 | 0.002 |
| smtp | Exim smtpd | 4.61 | 69 | 0.002 |
| smtp | Sendmail | 8.13.8/8.13.3 | 68 | 0.002 |
| smtp | MDaemon smtpd | 9.0.6 | 68 | 0.002 |
| smtp | IMail NT-ESMTP | 11.02 2-1 | 68 | 0.002 |
| smtp | Sendmail | 8.13.7/8.13.3 | 67 | 0.002 |
| smtp | Sendmail | 8.14.3/Nase | 66 | 0.001 |
| smtp | Sendmail | 8.13.8/8.14.1 | 66 | 0.001 |
| smtp | Sendmail | 8.13.6/8.13.4 | 66 | 0.001 |
| smtp | Post.Office | 4.1.2.4 release 20101227 | 66 | 0.001 |
| ssl | TLS | 1.0 | 65 | 0.001 |
| smtp | Sendmail | 8.14.5/8.14.1 | 65 | 0.001 |
| smtp | Sendmail | 8.14.4/8.14.4/Debian-2ubuntu2 | 65 | 0.001 |
| smtp | Sendmail | 8.14.4/8.14.1 | 65 | 0.001 |
| smtp | qmail smtpd | 65 | 0.001 | |
| smtp | MailEnable smptd | 6.02--6.02 | 65 | 0.001 |
| smtp | MailEnable smptd | 6.52--6.52 | 64 | 0.001 |
| smtp | Sendmail | 8.13.7/8.13.6 | 62 | 0.001 |
| smtp | MailEnable smptd | 0-3.14- | 62 | 0.001 |
| smtp | IMail NT-ESMTP | 11.02 4-1 | 62 | 0.001 |
| smtp | Sendmail | 8.14.1/8.14.2 | 61 | 0.001 |
| smtp | MDaemon smtpd | 12.5.8 | 61 | 0.001 |
| smtp | MailEnable smptd | --4.26 | 61 | 0.001 |
| smtp | MailEnable smptd | 3.63-- | 61 | 0.001 |
| smtp | MailEnable smptd | 0-6.55- | 61 | 0.001 |
| smtp | MailEnable smptd | 0-6.53- | 61 | 0.001 |
| smtp | Communigate Pro SMTP | 5.4.6 | 61 | 0.001 |
| telnet | 59 | 0.001 | ||
| smtp | Surgemail smtpd | 5.3i-26 | 59 | 0.001 |
| smtp | MailEnable smptd | 5.53--5.53 | 59 | 0.001 |
| smtp | MailEnable smptd | 0-5.5- | 59 | 0.001 |
| smtp | MailEnable smptd | 0-1.85- | 59 | 0.001 |
| smtp | IMail NT-ESMTP | 12.0.0.384 2-1 | 59 | 0.001 |
| smtp | Sendmail | 8.13.8+Sun/8.13.8/usc | 58 | 0.001 |
| smtp | Sendmail | 8.12.11.20060308/8.12.11/Web-Alm-2003112001 | 58 | 0.001 |
| smtp | Communigate Pro SMTP | 5.3.4 | 58 | 0.001 |
| smtp | Sendmail | 8.14.3 | 57 | 0.001 |
| smtp | IceWarp smtpd | 10.0.8 | 57 | 0.001 |
| smtp | Sendmail | 8.13.3 rev 1.000 | 56 | 0.001 |
| smtp | Sendmail | 8.11.7p1+Sun/8.10.2 | 56 | 0.001 |
| smtp | Sendmail | 8.11.0-20030924/SCO5 | 56 | 0.001 |
| smtp | MailEnable smptd | 6.01--6.01 | 56 | 0.001 |
| http | Boa HTTPd | 0.94.14rc21 | 56 | 0.001 |
| smtp | Sendmail | 8.13.3/8.12.10 | 55 | 0.001 |
| smtp | XMail SMTP server | 1.12 | 54 | 0.001 |
| smtp | Sendmail | 8.14.2/8.13.1 | 54 | 0.001 |
| smtp | Sendmail | 8.13.8/8.12.10 | 54 | 0.001 |
| smtp | Sendmail | 8.12.9-20030917/8.12.9 | 54 | 0.001 |
| http | Apache Tomcat/Coyote JSP engine | 1.1 | 54 | 0.001 |
| smtp | Sendmail | 8.14.5/8.14.5/2011-12-13 | 53 | 0.001 |
| smtp | Sendmail | 8.13.4/8.13.1 | 53 | 0.001 |
| smtp | Sendmail | 8.12.11/8.12.9 | 53 | 0.001 |
| smtp | MailEnable smptd | 5.11--5.11 | 53 | 0.001 |
| smtp | MailEnable Enterprise smptd | 2.52 | 53 | 0.001 |
| smtp | Sendmail | 8.14.4/8.12.10 | 52 | 0.001 |
| smtp | Sendmail | 8.12.9p1/8.12.9 | 52 | 0.001 |
| smtp | Sendmail | 8.12.9/8.12.2 | 52 | 0.001 |
| smtp | Sendmail | 8.11.7p2+Sun/8.11.7 | 52 | 0.001 |
| smtp | Merak Mail Server smtpd | 8.9.1 | 52 | 0.001 |
| smtp | MailEnable smptd | 6.55--6.55 | 52 | 0.001 |
| arcserve | ARCserve Discovery | 52 | 0.001 | |
| smtp | Postfix smtpd | 2.7.0 | 51 | 0.001 |
| smtp | Postfix smtpd | 2.6.5 | 51 | 0.001 |
| smtp | Messaging Architects M+ Extreme Email Engine smtpd | 2010.1.release | 51 | 0.001 |
| smtp | Merak Mail Server smtpd | 8.5.0-5 | 51 | 0.001 |
| smtp | MailEnable smptd | 5.02-- | 51 | 0.001 |
| smtp | Eudora smtpd | 3.2.10 | 51 | 0.001 |
| smtp | ArGoSoft Mail Server Pro | 1.8.9.1 | 51 | 0.001 |
| ssh | OpenSSH | 4.3 | 50 | 0.001 |
| smtp | Sendmail | 8.13.3/8.13.1 | 50 | 0.001 |
| smtp | OpenSMTPD | 50 | 0.001 | |
| smtp | MDaemon smtpd | 9.6.0 | 50 | 0.001 |
| smtp | MDaemon smtpd | 10.0.3 | 50 | 0.001 |
| smtp | MailEnable smptd | -1.87- | 50 | 0.001 |
| smtp | Sendmail | 8.14.4/8.11.6 | 49 | 0.001 |
| smtp | Sendmail | 8.13.6/8.12.8 | 49 | 0.001 |
| smtp | Sendmail | 8.12.3p3/8.12.3 | 49 | 0.001 |
| smtp | IMail NT-ESMTP | 12.1.0.270 3-1 | 49 | 0.001 |
| smtp | Communigate Pro SMTP | 5.4.1 | 49 | 0.001 |
| smtp | Communigate Pro SMTP | 5.2.20 | 49 | 0.001 |
| smtp | Communigate Pro SMTP | 5.1.14 | 49 | 0.001 |
| smtp | Sendmail | 8.14.4/8.13.4 | 48 | 0.001 |
| smtp | Sendmail | 8.12.4/8.12.4 | 48 | 0.001 |
| smtp | Sendmail | 8.12.2+Sun/8.12.2 | 48 | 0.001 |
| smtp | Sendmail | 8.11.4/8.11.4 | 48 | 0.001 |
| smtp | MDaemon smtpd | 9.0.7 | 48 | 0.001 |
| smtp | MailEnable Enterprise smptd | 2.53 | 48 | 0.001 |
| http | thttpd | 2.25b | 48 | 0.001 |
| smtp | Sendmail | 8.14.1/8.12.11 | 47 | 0.001 |
| smtp | Sendmail | 8.10.1/8.10.1 | 47 | 0.001 |
| smtp | Microsoft Exchange 2010 smtpd | 6.0.3790.1830 | 47 | 0.001 |
| smtp | Kerio Connect smtpd | 7.5.0 beta 2 | 47 | 0.001 |
| smtp | Communigate Pro SMTP | 4.2.10 | 47 | 0.001 |
| http | Hikvision-Webs | 47 | 0.001 | |
| smtp | XMail SMTP server | 1.21 | 46 | 0.001 |
| smtp | Sendmail | 8.14.5/8.13.8 | 46 | 0.001 |
| smtp | Sendmail | 8.13.7/8.13.8 | 46 | 0.001 |
| smtp | Sendmail | 8.13.4/8.12.10 | 46 | 0.001 |
| smtp | Merak Mail Server smtpd | 7.5.2 | 46 | 0.001 |
| smtp | Communigate Pro SMTP | 5.4.2 | 46 | 0.001 |
| socks-proxy | CCProxy socks proxy | 45 | 0.001 | |
| smtp | Sendmail | 8.12.3/8.12.3/Debian-7.1 | 45 | 0.001 |
| smtp | IMail NT-ESMTP | 12.0.0.348 2-1 | 45 | 0.001 |
| smtp | IMail NT-ESMTP | 11.03 3-1 | 45 | 0.001 |
| smtp | Alt-N MDaemon mail server | 11.0.0 | 45 | 0.001 |
| smtp | Sendmail | 8.13.8/8.13.5 | 44 | 0.001 |
| smtp | Sendmail | 8.12.10/8.12.9 | 44 | 0.001 |
| smtp | Sendmail | 8.11.7p1+Sun/8.11.6 | 44 | 0.001 |
| smtp | MailEnable smptd | 5.10--5.10 | 44 | 0.001 |
| smtp | MailEnable smptd | 0-5.01- | 44 | 0.001 |
| imap | Microsoft Exchange 2007-2010 imapd | 44 | 0.001 | |
| smtp | Sendmail | 8.11.7+Sun/8.11.7 | 43 | 0.001 |
| smtp | IceWarp smtpd | 10.2.2 | 43 | 0.001 |
| smtp | Sendmail | 8.14.4/8.12.11 | 42 | 0.001 |
| smtp | Sendmail | 8.14.3/8.14.3/Debian-5 | 42 | 0.001 |
| smtp | Sendmail | 8.12.11.20060614/8.11.6 | 42 | 0.001 |
| smtp | Oracle Communications Message Exchange imapd | 7u4-18.01 (built Jul 15 2010) | 42 | 0.001 |
| smtp | MailEnable smptd | 6.71--6.71 | 42 | 0.001 |
| smtp | MailEnable smptd | 4.3--4.3 | 42 | 0.001 |
| smtp | MailEnable Enterprise smptd | 3.50 | 42 | 0.001 |
| smtp | IMail NT-ESMTP | 11.02 3-1 | 42 | 0.001 |
| smtp | Exim smtpd | 4.50 | 42 | 0.001 |
| smtp | ArGoSoft Mail Server Pro | 1.8.9.3 | 42 | 0.001 |
| ssh | OpenSSH | 5.5p1 Debian 6+squeeze2 | 41 | 0.001 |
| smtp | Surgemail smtpd | 4.2d2-2 | 41 | 0.001 |
| smtp | Sendmail | 8.14.2/8.14.2/Debian-2build1 | 41 | 0.001 |
| smtp | Sendmail | 8.12.10/8.12.5 | 40 | 0.001 |
| smtp | Sendmail | 8.10.1/8.10.1/usc | 40 | 0.001 |
| smtp | JAMES smtpd | 2.3.2 | 40 | 0.001 |
| smtp | Eudora smtpd | 3.2.8 | 40 | 0.001 |
| smtp | Surgemail smtpd | 5.0e3-3 | 39 | 0.001 |
| smtp | Sendmail | 8.14.5+Sun/8.14.5 | 39 | 0.001 |
| smtp | Sendmail | 8.13.8/8.12.9 | 39 | 0.001 |
| smtp | Sendmail | 8.12.10/8.11.6 | 39 | 0.001 |
| smtp | MailEnable smptd | -3.11- | 39 | 0.001 |
| smtp | Lotus Domino smtpd | 8.5.3 | 39 | 0.001 |
| smtp | IMail smtpd | 39 | 0.001 | |
| smtp | Sendmail | 8.14.2+Sun/8.14.2 | 38 | 0.001 |
| smtp | Sendmail | 8.12.9/8.12.11 | 38 | 0.001 |
| smtp | Sendmail | 8.12.11.20060308/8.11.6 | 38 | 0.001 |
| smtp | Microsoft ESMTP | 7.5.7600.16601 | 38 | 0.001 |
| smtp | Sun Java System Messaging Server smtpd | 6.2-8.04 | 37 | 0.001 |
| smtp | Nemesis smtpd | 37 | 0.001 | |
| smtp | MailEnable smptd | 6.71-- | 37 | 0.001 |
| smtp | MailEnable smptd | 5.54--5.54 | 37 | 0.001 |
| smtp | Sun Java System Messaging Server smtpd | 32 | 36 | 0.001 |
| smtp | Sendmail Switch smtpd | 3.3.3 | 36 | 0.001 |
| smtp | Sendmail | 8.13.7/8.12.11 | 36 | 0.001 |
| smtp | IceWarp smtpd | 10.2.1 | 36 | 0.001 |
| smtp | Sendmail | 8.14.3/8.13.1 | 35 | 0.001 |
| smtp | Sendmail | 8.13.8+Sun/8.13.7 | 35 | 0.001 |
| smtp | Sendmail | 8.13.8+Sun/8.13.3 | 35 | 0.001 |
| smtp | Sendmail | 8.13.1/Beta-1.51 | 35 | 0.001 |
| smtp | Sendmail | 8.13.0/8.13.0 | 35 | 0.001 |
| smtp | Microsoft ESMTP | 6.0.3790.211 | 35 | 0.001 |
| smtp | IceWarp smtpd | 10.3.2 | 35 | 0.001 |
| smtp | Sendmail | 8.13.8/8.11.0 | 34 | 0.001 |
| smtp | Sendmail | 8.12.10+Sun/8.12.8 | 34 | 0.001 |
| smtp | MailEnable smptd | 6.60--6.60 | 34 | 0.001 |
| smtp | MailEnable smptd | 0-5.54- | 34 | 0.001 |
| smtp | MailEnable smptd | 0-2.37- | 34 | 0.001 |
| smtp | IceWarp smtpd | 9.3.2 | 34 | 0.001 |
| smtp | Code-Crafters Ability Mail Server smtpd | 2.70 | 34 | 0.001 |
| smtp | ArGoSoft Mail Server Pro | 1.8.8.8 | 34 | 0.001 |
| smtp | Alt-N MDaemon mail server | 11.0.3 | 34 | 0.001 |
| pop3 | Microsoft Exchange 2007-2010 pop3d | 34 | 0.001 | |
| smtp | Surgemail smtpd | 4.2a3-3 | 33 | 0.001 |
| smtp | Sendmail | 8.14.2/8.13.4 | 33 | 0.001 |
| smtp | Sendmail | 8.12.11.20060308/8.12.8 | 33 | 0.001 |
| smtp | Network Box smtpd | 33 | 0.001 | |
| smtp | Kerio Connect smtpd | 7.3.1 patch 1 | 33 | 0.001 |
| smtp | Communigate Pro SMTP | 5.2.16 | 33 | 0.001 |
| http-proxy | Squid http proxy | 2.6.STABLE12 | 33 | 0.001 |
| ftp | Microsoft ftpd | 33 | 0.001 | |
| smtp | Sendmail | 8.14.4/8.13.3 | 32 | 0.001 |
| smtp | Sendmail | 8.14.0/8.13.1 | 32 | 0.001 |
| smtp | Sendmail | 8.13.8+Sun/8.13.6 | 32 | 0.001 |
| smtp | Sendmail | 8.13.8/8.14.2 | 32 | 0.001 |
| smtp | Sendmail | 8.13.7/8.12.7/SuSE | 32 | 0.001 |
| smtp | MailEnable smptd | 0-5.07- | 32 | 0.001 |
| smtp | IMail NT-ESMTP | 11.5 5-1 | 32 | 0.001 |
| smtp | Sendmail | 8.13.8/8.13.7 | 31 | 0.001 |
| smtp | Sendmail | 8.13.8 | 31 | 0.001 |
| smtp | Sendmail | 8.13.4/8.13.0 | 31 | 0.001 |
| smtp | Sendmail | 8.11.0/SCO5 | 31 | 0.001 |
| smtp | IMail NT-ESMTP | 11.5 9-1 | 31 | 0.001 |
| smtp | IMail NT-ESMTP | 11.01 3-1 | 31 | 0.001 |
| smtp | XMail SMTP server | 1.23 | 30 | 0.001 |
| smtp | Tobit David.fx smtpd | 0386 | 30 | 0.001 |
| smtp | Sendmail | 8.14.5/8.14.5/1.11 | 30 | 0.001 |
| smtp | Sendmail | 8.14.1/8.11.3/SuSE | 30 | 0.001 |
| smtp | Sendmail | 8.13.3/8.12.9 | 30 | 0.001 |
| smtp | Sendmail | 8.12.9/8.12.8 | 30 | 0.001 |
| smtp | Sendmail | 8.12.10+Sun/8.12.2 | 30 | 0.001 |
| smtp | MailEnable smptd | 5.01-- | 30 | 0.001 |
| smtp | Lotus Domino smtpd | 8.5.2 | 30 | 0.001 |
| smtp | IMail NT-ESMTP | 11.5 4-1 | 30 | 0.001 |
| http | httpd | 30 | 0.001 | |
| smtp | Surgemail smtpd | 4.3g2-2 | 29 | 0.001 |
| smtp | Sendmail | 8.14.4/8.14.4/Debian-2.1 | 29 | 0.001 |
| smtp | Sendmail | 8.13.5/8.12.2 | 29 | 0.001 |
| smtp | Sendmail | 8.13.1/8.12.8 | 29 | 0.001 |
| smtp | Sendmail | 8.12.11/8.12.8/Submit | 29 | 0.001 |
| smtp | Post.Office | 4.1.0.2 release 20080111 | 29 | 0.001 |
| smtp | Mirapoint smtpd | 4.2.4-GA | 29 | 0.001 |
| smtp | MDaemon smtpd | 8.1.2 | 29 | 0.001 |
| smtp | MDaemon smtpd | 12.5.7 | 29 | 0.001 |
| smtp | Eudora smtpd | 3.2.9 | 29 | 0.001 |
| smtp | Communigate Pro SMTP | 5.3.13 | 29 | 0.001 |
| http | thttpd | 29 | 0.001 | |
| smtp | Sendmail | 8.14.4+Sun/8.13.8 | 28 | 0.001 |
| smtp | Sendmail | 8.14.3/8.12.7 | 28 | 0.001 |
| smtp | Sendmail | 8.13.6/8.13.3 | 28 | 0.001 |
| smtp | Sendmail | 8.12.8+Sun/8.12.8 | 28 | 0.001 |
| smtp | Sendmail | 8.12.7/8.12.7 | 28 | 0.001 |
| smtp | Sendmail | 8.12.11.20060614/8.12.6 | 28 | 0.001 |
| smtp | Rockliffe MailSite | 9.4.1.0 | 28 | 0.001 |
| smtp | MailEnable smptd | 6.65--6.65 | 28 | 0.001 |
| smtp | MailEnable smptd | 0-6.72- | 28 | 0.001 |
| smtp | Kerio Connect smtpd | 7.2.1 | 28 | 0.001 |
| ssh | OpenSSH | 5.9p1 Debian 5ubuntu1 | 27 | 0.001 |
| smtp | Surgemail smtpd | 4.2d4-4 | 27 | 0.001 |
| smtp | Sendmail | 8.14.5/8.12.11 | 27 | 0.001 |
| smtp | Sendmail | 8.13.8/8.14.3 | 27 | 0.001 |
| smtp-proxy | Symantec Brightmail smtp proxy | 27 | 0.001 | |
| smtp | MailEnable smptd | -3.63- | 27 | 0.001 |
| smtp | MailEnable smptd | 1.8-- | 27 | 0.001 |
| smtp | Lotus Domino smtpd | 8.5.3FP1 | 27 | 0.001 |
| smtp | Surgemail smtpd | 6.2c-1 | 26 | 0.001 |
| smtp | Sendmail | 8.14.5/8.13.3 | 26 | 0.001 |
| smtp | Sendmail | 8.14.3/8.14.3/SENDMAIL_VFS10 | 26 | 0.001 |
| smtp | Sendmail | 8.12.9p2/8.12.11 | 26 | 0.001 |
| smtp | Sendmail | 8.12.1/8.12.1 | 26 | 0.001 |
| smtp | Sendmail | 8.12.11/8.13.3 | 26 | 0.001 |
| smtp | Sendmail | 8.11.6/8.10.2 | 26 | 0.001 |
| smtp | MDaemon smtpd | 9.5.3 | 26 | 0.001 |
| smtp | MailEnable smptd | 5.54-- | 26 | 0.001 |
| smtp | MailEnable smptd | --3.6 | 26 | 0.001 |
| smtp | Kerio MailServer | 6.5.1 | 26 | 0.001 |
| smtp | Allworx 6x VoIP phone smtpd | 26 | 0.001 | |
| smtp | Surgemail smtpd | 6.1d-27 | 25 | 0.001 |
| smtp | Sendmail | 8.12.9/8.14.2 | 25 | 0.001 |
| smtp | Sendmail | 8.12.5/8.11.2 | 25 | 0.001 |
| smtp | Sendmail | 8.11.7p3+Sun/8.10.2/LDEO_CLIENT-1.1 | 25 | 0.001 |
| smtp | Merak Mail Server smtpd | 7.4.5 | 25 | 0.001 |
| smtp | MDaemon smtpd | 9.0.9 | 25 | 0.001 |
| smtp | MailMax smtpd | 5.5 | 25 | 0.001 |
| smtp | MailEnable smptd | 0-6.58- | 25 | 0.001 |
| smtp | MailEnable smptd | 0-5.0- | 25 | 0.001 |
| smtp | MailEnable smptd | 0-2.36- | 25 | 0.001 |
| smtp | MailEnable Enterprise smptd | 2.37 | 25 | 0.001 |
| smtp | Exim smtpd | 3.35 | 25 | 0.001 |
| smtp | Communigate Pro SMTP | 5.3.15 | 25 | 0.001 |
| smtp | Sendmail | 8.14.3/8.14.3/SuSE | 24 | 0.001 |
| smtp | Sendmail | 8.14.2/8.14.3 | 24 | 0.001 |
| smtp | Sendmail | 8.13.6/8.12.3 | 24 | 0.001 |
| smtp | Sendmail | 8.13.4/8.13.8 | 24 | 0.001 |
| smtp | Sendmail | 8.12.9/8.12.6 | 24 | 0.001 |
| smtp | PowerMTA smtpd | 3.5r16 | 24 | 0.001 |
| smtp | Kerio MailServer | 6.7.0 | 24 | 0.001 |
| smtp | Bizanga bizsmtp smtpd | 24 | 0.001 | |
| smtp | TurboSendmail smtpd | 23 | 0.001 | |
| smtp | Sun Java System Messaging Server smtpd | 6.3-6.03 | 23 | 0.001 |
| smtp | Sendmail | 8.14.5/8.12.10 | 23 | 0.001 |
| smtp | Sendmail | 8.14.1/8.13.4 | 23 | 0.001 |
| smtp | Sendmail | 8.14.1/8.13.1 | 23 | 0.001 |
| smtp | Sendmail | 8.13.7/8.12.10 | 23 | 0.001 |
| smtp | Sendmail | 8.13.2/8.13.2 | 23 | 0.001 |
| smtp | Sendmail | 8.12.11.20060308/8.11.6/SuSE | 23 | 0.001 |
| smtp | Microsoft ESMTP | 7.0.6001.18000 | 23 | 0.001 |
| smtp | Merak Mail Server smtpd | 7.6.4 | 23 | 0.001 |
| smtp | MailEnable smptd | 6.72--6.72 | 23 | 0.001 |
| smtp | MailEnable smptd | -5.10- | 23 | 0.001 |
| smtp | Mail2000 smtpd | 4.50S | 23 | 0.001 |
| smtp | Kerio MailServer | 6.5.2 | 23 | 0.001 |
| smtp | Exim smtpd | 4.66 | 23 | 0.001 |
| smtp | Communigate Pro SMTP | 5.4.3 | 23 | 0.001 |
| http | http server 1.0 | 23 | 0.001 | |
| ssh | OpenSSH | 5.3 | 22 | 0.0 |
| smtp | Surgemail smtpd | 6.1d-35 | 22 | 0.0 |
| smtp | Sendmail | 8.9.1/8.8.6 | 22 | 0.0 |
| smtp | Sendmail | 8.14.4/8.14.4/Debian-2 | 22 | 0.0 |
| smtp | Sendmail | 8.14.4/8.13.7 | 22 | 0.0 |
| smtp | Sendmail | 8.14.3/8.13.8/nas | 22 | 0.0 |
| smtp | Sendmail | 8.14.0/8.11.3/SuSE | 22 | 0.0 |
| smtp | Sendmail | 8.12.9/8.12.0 | 22 | 0.0 |
| smtp | PMDF smtpd | 6.5 | 22 | 0.0 |
| smtp | Merak Mail Server smtpd | 6.0.5 | 22 | 0.0 |
| smtp | MailEnable smptd | 0-4.5- | 22 | 0.0 |
| smtp | MailEnable smptd | 0-1.54- | 22 | 0.0 |
| smtp | Lotus Domino smtpd | 8.5.2FP2 | 22 | 0.0 |
| smtp | Kerio MailServer | 6.7.3 patch 1 | 22 | 0.0 |
| smtp | Kerio Connect smtpd | 8.0.0 RC 2 | 22 | 0.0 |
| smtp | Exim smtpd | 4.76-48437 | 22 | 0.0 |
| smtp | Exim smtpd | 4.53 | 22 | 0.0 |
| smtp | Communigate Pro SMTP | 5.3.11 | 22 | 0.0 |
| smtp | ArGoSoft Mail Server Pro | 1.8.6.0 | 22 | 0.0 |
| http-proxy | Squid http proxy | 2.6.STABLE21 | 22 | 0.0 |
| smtp | Surgemail smtpd | 5.0e4-4 | 21 | 0.0 |
| smtp | Surgemail smtpd | 3.8m-1 | 21 | 0.0 |
| smtp | Sendmail Switch smtpd | 3.1.7 | 21 | 0.0 |
| smtp | Sendmail | 8.14.1/8.12.10 | 21 | 0.0 |
| smtp | Sendmail | 8.12.8/8.12.10 | 21 | 0.0 |
| smtp | Sendmail | 8.11.7p3+Sun/8.10.2 | 21 | 0.0 |
| smtp | Sendmail | 8.10 | 21 | 0.0 |
| smtp | Mirapoint Messaging Server MOS smtpd | 4.3.4-GA Queueing | 21 | 0.0 |
| smtp | Microsoft ESMTP | 7.5.7600.16385 | 21 | 0.0 |
| smtp | MailEnable smptd | 6.61-- | 21 | 0.0 |
| smtp | MailEnable smptd | 4.17--4.17 | 21 | 0.0 |
| smtp | IMail NT-ESMTP | 12.2.0.169 2-1 | 21 | 0.0 |
| smtp | IceWarp smtpd | 9.1.1 | 21 | 0.0 |
| smtp | IceWarp smtpd | 10.4.0 | 21 | 0.0 |
| smtp | Exim smtpd | 4.76-48698 | 21 | 0.0 |
| smtp | Exim smtpd | 4.76-48542 | 21 | 0.0 |
| smtp | Cisco IronPort C160 firewall smtpd | 21 | 0.0 | |
| ftp | vsftpd | 2.0.8 or later | 21 | 0.0 |
| smtp | Sun Java System Messaging Server smtpd | 6.2-3.04 | 20 | 0.0 |
| smtp | Sendmail Switch smtpd | 3.2.7 | 20 | 0.0 |
| smtp | Sendmail Switch smtpd | 3.1.2 | 20 | 0.0 |
| smtp | Sendmail | 8.14.2/8.12.10 | 20 | 0.0 |
| smtp | Sendmail | 8.14.0/8.13.6 | 20 | 0.0 |
| smtp | Sendmail | 8.13.8+Sun/8.12.9 | 20 | 0.0 |
| smtp | Sendmail | 8.13.3/8.11.6 | 20 | 0.0 |
| smtp | Sendmail | 8.13.1/8.11.6 | 20 | 0.0 |
| smtp | Novell GroupWise | 8.0.2 | 20 | 0.0 |
| smtp | Mirapoint Messaging Server MOS smtpd | 4.2.3-GA Queueing | 20 | 0.0 |
| smtp | MailEnable smptd | --4.01 | 20 | 0.0 |
| smtp | MailEnable smptd | 0-1.6- | 20 | 0.0 |
| smtp | IMail NT-ESMTP | 11.5 8-1 | 20 | 0.0 |
| smtp | IMail NT-ESMTP | 11.03 4-1 | 20 | 0.0 |
| smtp | Exim smtpd | 4.54 | 20 | 0.0 |
| smtp | Communigate Pro SMTP | 5.4c2 | 20 | 0.0 |
| smtp | ArGoSoft Mail Server Pro | 1.8.8.7 | 20 | 0.0 |
| smtp | Surgemail smtpd | 3.9c-1 | 19 | 0.0 |
| smtp | Sendmail | 8.14.4/8.14.4/Debian-2ubuntu1 | 19 | 0.0 |
| smtp | Sendmail | 8.14.4 | 19 | 0.0 |
| smtp | Sendmail | 8.14.1/8.12.8 | 19 | 0.0 |
| smtp | Merak Mail Server smtpd | 8.2.4 | 19 | 0.0 |
| smtp | MailEnable smptd | --6.03 | 19 | 0.0 |
| smtp | MailEnable smptd | 0-3.52- | 19 | 0.0 |
| smtp | IceWarp smtpd | 10.3.3 | 19 | 0.0 |
| smtp | Communigate Pro SMTP | 5.4.8 | 19 | 0.0 |
| smtp | Communigate Pro SMTP | 5.2.12 | 19 | 0.0 |
| http | Apache | 2.2.3 | 19 | 0.0 |
| ftp | 19 | 0.0 | ||
| smtp | Surgemail smtpd | 5.3i-31 | 18 | 0.0 |
| smtp | Surgemail smtpd | 3.9h-18 | 18 | 0.0 |
| smtp | Sendmail | 8.13.8/8.13.8/CU/AcIS | 18 | 0.0 |
| smtp | Sendmail | 8.13.1/8.13.1 | 18 | 0.0 |
| smtp | Sendmail | 8.13.1/8.11.1 | 18 | 0.0 |
| smtp | Sendmail | 8.12.8p2/8.12.8 | 18 | 0.0 |
| smtp | Sendmail | 8.11.2/8.11.2 | 18 | 0.0 |
| smtp | Rockliffe MailSite | 9.5.4.3 | 18 | 0.0 |
| smtp | qpsmtpd | 0.84 | 18 | 0.0 |
| smtp-proxy | spamd smtpd | 18 | 0.0 | |
| smtp | Microsoft ESMTP | 6.0.2600.5949 | 18 | 0.0 |
| smtp | Merak Mail Server smtpd | 8.5.0-9 | 18 | 0.0 |
| smtp | MDaemon smtpd | 11.0.4 | 18 | 0.0 |
| smtp | MailEnable smptd | 4.25--4.25 | 18 | 0.0 |
| smtp | MailEnable smptd | 0-6.65- | 18 | 0.0 |
| smtp | MailEnable smptd | 0-1.81- | 18 | 0.0 |
| smtp | Kerio Connect smtpd | 7.1.2 patch 1 | 18 | 0.0 |
| smtp | IMail NT-ESMTP | 11.5 109-1 | 18 | 0.0 |
| smtp | IMail NT-ESMTP | 11.5 107-1 | 18 | 0.0 |
| smtp | IMail NT-ESMTP | 11.0 2-1 | 18 | 0.0 |
| smtp | Communigate Pro SMTP | 5.3.10 | 18 | 0.0 |
| smtp | Communigate Pro SMTP | 5.2.3 | 18 | 0.0 |
| http | lighttpd | 1.4.26 | 18 | 0.0 |
| http | Boa HTTPd | 0.94.13 | 18 | 0.0 |
| ssh | OpenSSH | 5.3p1 Debian 3ubuntu7 | 17 | 0.0 |
| smtp | XMail SMTP server | 1.20 | 17 | 0.0 |
| smtp | Surgemail smtpd | 5.1c-1 | 17 | 0.0 |
| smtp | Surgemail smtpd | 3.8k2-2 | 17 | 0.0 |
| smtp | Sendmail | 8.14.3+Sun/8.14.3 | 17 | 0.0 |
| smtp | Sendmail | 8.14.3/8.13.3 | 17 | 0.0 |
| smtp | Sendmail | 8.14.0/8.13.8 | 17 | 0.0 |
| smtp | Sendmail | 8.13.3/8.13.4 | 17 | 0.0 |
| smtp | Sendmail | 8.13.1 | 17 | 0.0 |
| smtp | Sendmail | 8.12.6/8.11.0 | 17 | 0.0 |
| smtp | Sendmail | 8.12.11.20060614/8.11.2 | 17 | 0.0 |
| smtp | Sendmail | 8.12.10/8.12.6 | 17 | 0.0 |
| smtp | Rockliffe MailSite | 9.5.4.5 | 17 | 0.0 |
| smtp | Post.Office | 4.1.1 release 20090730 | 17 | 0.0 |
| smtp | Postfix smtpd | 2.7.1 | 17 | 0.0 |
| smtp | MailEnable smptd | 6.63-- | 17 | 0.0 |
| smtp | MailEnable smptd | 1.985-- | 17 | 0.0 |
| smtp | Kerio MailServer | 6.6.2 | 17 | 0.0 |
| smtp | Communigate Pro SMTP | 5.2.19 | 17 | 0.0 |
| vnc | RealVNC Enterprise | 16 | 0.0 | |
| ssh | OpenSSH | 5.1p1 Debian 5 | 16 | 0.0 |
| smtp | Surgemail smtpd | 5.1c2-2 | 16 | 0.0 |
| smtp | Surgemail smtpd | 4.3g-1 | 16 | 0.0 |
| smtp | Surgemail smtpd | 4.3e-1 | 16 | 0.0 |
| smtp | Surgemail smtpd | 3.8i3-3 | 16 | 0.0 |
| smtp | Surgemail smtpd | 3.7b8-8 | 16 | 0.0 |
| smtp | Sendmail Switch smtpd | 3.3.4 | 16 | 0.0 |
| smtp | Sendmail | 8.14.5/8.14.5-RoboDoc | 16 | 0.0 |
| smtp | Sendmail | 8.14.3/8.13.4/Debian-3 | 16 | 0.0 |
| smtp | Sendmail | 8.14.3/8.12.11 | 16 | 0.0 |
| smtp | Sendmail | 8.13.8+Sun/8.12.11 | 16 | 0.0 |
| smtp | Sendmail | 8.13.5/8.12.9 | 16 | 0.0 |
| smtp | Sendmail | 8.12.6/8.12.3 | 16 | 0.0 |
| smtp | Sendmail | 8.11.6+Sun/8.10.2 | 16 | 0.0 |
| smtp | Postfix smtpd | 2.8.3 | 16 | 0.0 |
| smtp | Novell GroupWise | 7.0.3 | 16 | 0.0 |
| smtp | MailEnable smptd | 6.73--6.73 | 16 | 0.0 |
| smtp | MailEnable smptd | 6.64-- | 16 | 0.0 |
| smtp | MailEnable smptd | 0-6.59- | 16 | 0.0 |
| smtp | MailEnable smptd | 0-4.25- | 16 | 0.0 |
| smtp | IMail NT-ESMTP | 11.5 71-1 | 16 | 0.0 |
| smtp | Eudora smtpd | 3.2.6 | 16 | 0.0 |
| smtp | Communigate Pro SMTP | 5.4.0 | 16 | 0.0 |
| smtp | Alt-N MDaemon mail server | 6.8.5 | 16 | 0.0 |
| ssh | OpenSSH | 4.4 | 15 | 0.0 |
| smtp | Sendmail | 8.14.0/8.13.4 | 15 | 0.0 |
| smtp | Sendmail | 8.13.8/8.12.3 | 15 | 0.0 |
| smtp | Sendmail | 8.13.8/8.11.3/SuSE | 15 | 0.0 |
| smtp | Sendmail | 8.13.3 rev 1.001 | 15 | 0.0 |
| smtp | Sendmail | 8.12.9+Sun/8.12.2 | 15 | 0.0 |
| smtp | Sendmail | 8.12.11/8.12.8 | 15 | 0.0 |
| smtp | MailMarshal | 6.8.3.9481 | 15 | 0.0 |
| smtp | MailEnable smptd | 5.06-- | 15 | 0.0 |
| smtp | MailEnable smptd | 5.03--5.03 | 15 | 0.0 |
| smtp | MailEnable smptd | -4.26- | 15 | 0.0 |
| smtp | MailEnable smptd | -4.16- | 15 | 0.0 |
| smtp | MailEnable smptd | 0-3.63-2.53 | 15 | 0.0 |
| smtp | MailEnable smptd | 0-- | 15 | 0.0 |
| smtp | Kerio MailServer | 6.7.0 patch 1 | 15 | 0.0 |
| smtp | IMail NT-ESMTP | 11.5 7-1 | 15 | 0.0 |
| smtp | IceWarp smtpd | 10.4.4 | 15 | 0.0 |
| smtp | Exim smtpd | 4.80.1-51968 | 15 | 0.0 |
| smtp | Communigate Pro SMTP | 5.3.7 | 15 | 0.0 |
| smtp | ArGoSoft Mail Server Pro | 1.8.9.4 | 15 | 0.0 |
| smtp | ArGoSoft Mail Server Freeware | 1.8.9.2 | 15 | 0.0 |
| pop3 | Microsoft Exchange 2003 pop3d | 6.5.7638.1 | 15 | 0.0 |
| pop3 | hMailServer pop3d | 15 | 0.0 | |
| imap | Microsoft Exchange Server 2003 imapd | 6.5.7638.1 | 15 | 0.0 |
| ftp | Pure-FTPd | 15 | 0.0 |