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You are viewing an outdated report published on January 1st, 2012. The latest version of this report was published on April 1st, 2014


    
Mail (MX) Server Survey
January 1st, 2012

Report Description
This report is a comprehensive report involving all mail servers we know of visible on the internet. For each domain in our conventional web server survey, we also determine the list of mail servers that provide inbound mail services (via MX record lookups). Each unique mail server is connected to once each month, where we wait for the server's "220 " message which usually accompanies a banner revealing the server software being used.

Basic Response Statistics
When connecting to an MX server, a number of different responses are possible. The remote server may not be up and running or completely refusing connections, it may not respond back with a "220 " line in the amount of time we wait, nor will it always provide a banner that identifies the type of software running.

Description> Number of Servers Percent
Total Number of MX Servers Queried2,338,068   100.0%
Number of Servers that didn't respond392,74116.80%
    Server didn't open socket380,42616.27%
    Server didn't provide banner12,3150.53%
Server provided banner1,945,32783.20%
Server banner identifies software in use1,059,81145.33%

As indicated by the above table, of the 2,338,068 servers queried, only 1,059,811 servers responded with a banner that allow us to identify the software being used. All of the remaining information in this report is based on the responses that allowed us to identify the software in use.

Basic Technology Breakdown
Server Type Number of Servers Percent
Exim459,08943.32%
Postfix250,17323.61%
Sendmail131,73912.43%
Microsoft128,46612.12%
MailEnable33,2273.14%
MDaemon21,6802.05%
IMail9,5970.91%
Lotus Domino5,0080.47%
WinWebMail4,0760.38%
CommuniGate Pro3,4180.32%
XMail2,4080.23%
Kerio2,1850.21%
Qmail Toaster1,7150.16%
Merak1,6440.16%
SurgeSMTP1,2650.12%
ArGoSoft1,0310.10%
GroupWise7910.07%
Trend Micro4750.04%
Post.Office4480.04%
Gordano Messaging Suite (GMS)4170.04%
Mirapoint2400.02%
InterScan VirusWall1790.02%
VisNetic1780.02%
NetIQ MailMarshal710.01%
Interscan670.01%
Mercury540.01%
WebSTAR V430.00%
Neon Mail Server410.00%
OpenVMS230.00%
MessageWall200.00%
ModusMail170.00%
WebSTAR170.00%
MAILsweeper90.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (459,089 servers)

Version Number of Servers Percent
4.69362,48178.96%
4.7635,2827.69%
4.7220,7694.52%
4.779,6622.10%
4.678,5531.86%
4.635,8001.26%
Other16,5423.60%

Postfix (250,173 servers)
Version Number of Servers Percent Other250,173100.00%

Sendmail (131,739 servers) Version Number of Servers Percent 8.13.832,44724.63% 8.13.122,18416.84% 8.14.317,79213.51% 8.14.411,6428.84% 8.14.59,3467.09% 8.12.11.200603085,7564.37% 8.13.6.200606144,4843.40% 8.14.24,0903.10% 8.11.63,0942.35% 8.12.102,9572.24% 8.13.62,6392.00% 8.14.12,5301.92% 8.12.11.200606142,1691.65% 8.13.71,8851.43% 8.12.111,7601.34% 8.12.81,5131.15% 8.13.41,4291.08% Other4,0223.05%

Microsoft (128,466 servers) Version Number of Servers Percent 6.0.3790.4675100,06177.89% 6.0.3790.395917,66513.75% 6.0.3790.18304,8973.81% 5.0.2195.73811,5701.22% Other4,2733.33%

MailEnable (33,227 servers) Version Number of Servers Percent 1.986--9,44028.41% 4.26--2,6057.84% 1.981--1,8865.68% 5.10--1,7425.24% 1.983--1,1863.57% 0-3.63-8262.49% 3.62--8022.41% 5.51--8002.41% 5.11--7162.15% 4.22--4961.49% 0-4.26-4731.42% 0-5.51-4521.36% 4.23--4481.35% 0-1.87-4251.28% 0-2.53-3781.14% --3.633431.03% Other10,20930.73%

MDaemon (21,680 servers) Version Number of Servers Percent 11.0.32,85513.17% 12.5.21,7037.86% 12.5.11,2645.83% 11.0.01,2405.72% 12.0.31,1855.47% 10.0.09994.61% 10.1.29944.58% 12.0.49434.35% 10.1.17753.57% 12.5.06432.97% 9.6.15972.75% 9.6.65552.56% 10.1.05062.33% 12.0.13921.81% 9.6.53721.72% 9.5.23671.69% 10.0.53571.65% 9.6.23361.55% 9.5.13241.49% 10.0.23241.49% 12.0.03211.48% 9.5.63081.42% 9.6.42881.33% 8.1.32721.25% 9.0.42571.19% 10.0.42501.15% 11.0.22271.05% Other3,02613.96%

IMail (9,597 servers) Version Number of Servers Percent 8.221,75718.31% 11.51,49515.58% 8.156306.56% 11.035705.94% 9.235595.82% 11.014805.00% 8.053823.98% 9.103813.97% 11.023573.72% 9.203563.71% 10.022872.99% 11.02802.92% 7.072382.48% 7.152172.26% 8.001881.96% 6.061711.78% 10.011401.46% 9.211151.20% 8.04981.02% Other8969.34%

Lotus Domino (5,008 servers) Version Number of Servers Percent 8.5.252810.54% 8.5.34368.71% 8.5.2FP24178.33% 8.5.13206.39% 7.0.22675.33% 8.5.2FP32605.19% 8.52264.51% 8.5.2FP11933.85% 7.0.31533.06% 7.0.11222.44% 8.5.1FP51182.36% 8.0.11172.34% 8.0.21142.28% 6.5.41062.12% 6.5.11012.02% 6.5.3851.70% 8.0821.64% 7.0801.60% 8.5.1FP3741.48% 6.5.5711.42% 7.0.3FP1671.34% 8.5.1FP4641.28% 6.5641.28% 7.0.2FP2601.20% 8.5.1FP2511.02% Other83216.61%

WinWebMail (4,076 servers) Version Number of Servers Percent 3.8.1.394023.06% 3.8.0.169016.93% 3.7.6.152312.83% 3.7.3.13578.76% 3.8.1.13418.37% 3.7.7.33398.32% 3.8.1.51894.64% 3.7.1.11724.22% 3.7.5.11263.09% 3.7.7.1982.40% 3.6.3.1791.94% 3.7.0.3731.79% 3.7.0.5701.72% 3.7.0.7551.35% Other240.59%

CommuniGate Pro (3,418 servers) Version Number of Servers Percent 5.1.162657.75% 5.4.22196.41% 4.1.81765.15% 5.4.11715.00% 5.3.131283.74% 5.2.201223.57% 5.2.16922.69% 4.2.10872.55% 5.3.8832.43% 5.4.0782.28% 5.2.3722.11% 5.3.12722.11% 5.0.14712.08% 5.2.19681.99% 5.2.14621.81% 5.1.12611.78% 5.3.14581.70% 5.3.10581.70% 5.3.9571.67% 5.1.13501.46% 5.2.8471.38% 5.4461.35% 5.2.12461.35% 5.2.13411.20% 5.3.11401.17% 5.1.14351.02% Other1,11332.56%

XMail (2,408 servers) Version Number of Servers Percent 1.2257123.71% 1.2547619.77% 1.2744618.52% 1.2631313.00% 1.242339.68% 1.211024.24% 1.23582.41% 1.20502.08% 1.17391.62% 1.12321.33% Other883.65%

Kerio (2,185 servers) Version Number of Servers Percent 6.7.330814.10% 6.6.222810.43% 6.7.01999.11% 6.5.01516.91% 6.5.21446.59% 6.7.21446.59% 6.4.11175.35% 6.7.11155.26% 6.3.11004.58% 6.4.0884.03% 6.6.0803.66% 6.5.1763.48% 6.6.1683.11% 6.4.2512.33% 6.3.0361.65% 6.2.0261.19% 6.1.3241.10% 6.2.2221.01% 6.1.0221.01% Other1868.51%

Qmail Toaster (1,715 servers) Version Number of Servers Percent 1.31,61994.40% 1.2694.02% 1.0191.11% Other80.47%

Merak (1,644 servers) Version Number of Servers Percent 8.0.366940.69% 8.9.117010.34% 8.5.01217.36% 7.5.2764.62% 7.6.4744.50% 8.3.8694.20% 7.4.5613.71% 9.0.0301.82% 7.4.2251.52% 7.2.0231.40% 8.3.15221.34% 7.6.1211.28% 7.0.1211.28% 8.2.4201.22% 6.2.1191.16% 8.9.0191.16% 4.4.2181.09% Other18611.31%

SurgeSMTP (1,265 servers) Version Number of Servers Percent 5.3h2-235127.75% 5.2a-116112.73% 3.9e-1897.04% 4.2d4-4856.72% 5.0e4-4433.40% 5.3h-1433.40% 3.8k4-4433.40% 4.0u4-4413.24% 4.2d2-2241.90% 3.8i3-3241.90% 4.3g2-2221.74% 5.0e3-3181.42% 3.6f5-5171.34% 3.7b8-8171.34% 4.3g4-4161.26% 4.2a3-3151.19% 3.9h-18151.19% 3.9c-1131.03% 4.3e-1131.03% 5.1c-1131.03% 5.1c2-2131.03% Other18914.94%

ArGoSoft (1,031 servers) Version Number of Servers Percent 1.8 (1.8.9.6)24023.28% 1.8 (1.8.9.5)16916.39% 1.8 (1.8.9.3)12912.51% 1.8 (1.8.9.1)959.21% 1.8 (1.8.8.8)767.37% 1.8 (1.8.8.7)525.04% 1.8 (1.8.9.2)424.07% 1.8 (1.8.9.4)272.62% 1.8 (1.8.6.0)191.84% 1.8 (1.8.8.1)161.55% 1.8 (1.8.8.9)151.45% 1.8 (1.8.9.0)111.07% Other14013.58%

GroupWise (791 servers) Version Number of Servers Percent 7.0.316821.24% 8.0.216821.24% 6.5.78811.13% 7.0.2607.59% 8.0.1526.57% 7.0.4516.45% 7.0.1313.92% 6.5.4303.79% 6.5.6243.03% 6.0.4222.78% 6.5.1192.40% 8.0.0192.40% 6.5.5141.77% 7.0111.39% Other344.30%

Trend Micro (475 servers) Version Number of Servers Percent 5.720142.32% 5.511123.37% 5.188618.11% 7.04910.32% 7.1173.58% Other112.32%

Post.Office (448 servers) Version Number of Servers Percent 3.5.36714.96% 4.1.0.24910.94% 4.0.1378.26% 4.1.2.4296.47% 4.1.1214.69% 3.5.3J194.24% 3.9.2.3184.02% 3.8.3143.12% 3.9.2122.68% 4.2112.46% 3.1.2J112.46% 4.1.0.3102.23% 3.1.2102.23% 4.0.1.192.01% 3.8.7.492.01% 3.6.292.01% 4.1.0.481.79% 4.1.2.381.79% 4.0.0.271.56% 4.1.2.271.56% 3.9.2.171.56% 4.0.0.161.34% 3.9.1.251.12% 3.9.151.12% 3.9.1.351.12% 3.5.251.12% 4.151.12% 3.5.151.12% Other408.93%

Gordano Messaging Suite (GMS) (417 servers) Version Number of Servers Percent Other417100.00%

Mirapoint (240 servers) Version Number of Servers Percent 4.2.3-GA2912.08% 3.10.10a-GA229.17% 3.8.4-GA218.75% 3.10.5-GA187.50% 3.10.9-GA145.83% 4.1.10-GA145.83% 3.8.3-GA145.83% 3.10.8-GA135.42% 4.1.3-GA114.58% 3.10.7-GA93.75% 4.1.9-GA93.75% 4.1.8-GA72.92% 3.10.3-GA62.50% 4.1.4-GA62.50% 3.8.2-GA52.08% 3.8.5-GA52.08% 3.8.7a41.67% 3.10.4-GA41.67% 4.2.4-GA31.25% 3.7.5a-GA31.25% 4.1.5-GA31.25% 3.8.6-GA31.25% Other177.08%

InterScan VirusWall (179 servers) Version Number of Servers Percent Other179100.00%

VisNetic (178 servers) Version Number of Servers Percent 9.3.2.05229.21% 9.1.4.12715.17% 5.8.6.6105.62% 8.5.0.895.06% 5.5.8.384.49% 7.6.1.073.93% 8.0.3.163.37% 8.0.352.81% 8.0.3.052.81% 5.0.2.352.81% 8.3.5.052.81% 5.3.5.042.25% 9.1.4.042.25% 6.2.2.042.25% 5.4.5.431.69% 7.2.4.131.69% 5.0.2.131.69% 7-6-1-021.12% 8.3.0.121.12% Other147.87%

NetIQ MailMarshal (71 servers) Version Number of Servers Percent 6.0.3.84867.61% 5.5.6.779.86% 6.1.3.1579.86% 5.5.4.1622.82% 5.5.6.522.82% 5.5.3.1711.41% 5.5.5.611.41% 5.5.4.1711.41% 5.5.5.911.41% 5.5.6.611.41% Other00.00%

Interscan (67 servers) Version Number of Servers Percent 3.55 (build 1016)1319.40% 3.81-Build_1022811.94% 3.55 (build 1029)811.94% 3.8-Build_3013710.45% 3.81-Build_108457.46% 3.53 (build 2017)57.46% 3.55 (build 1020)34.48% 3.52 (build 1375)34.48% 3.53 (build 2011)34.48% 3.53 (build 1493)34.48% 3.53 (build 2013)22.99% 3.8-Build_108011.49% 3.81-Build_105511.49% 3.8-Build_304511.49% 3.51 (build 1321)11.49% 3.5 (build 1294)11.49% 3.51 (build 1337)11.49% 3.6-Build_124611.49% Other00.00%

Mercury (54 servers) Version Number of Servers Percent 1.482953.70% 3.321527.78% 1.4723.70% 3.21c23.70% 3.01a23.70% 3.3011.85% 3.2111.85% 3.3111.85% 4.x11.85% Other00.00%

WebSTAR V (43 servers) Version Number of Servers Percent 5.4.12046.51% 5.4.0920.93% 5.3.4613.95% 5.3.3511.63% 5.3.224.65% 5.3.012.33% Other00.00%

Neon Mail Server (41 servers) Version Number of Servers Percent 3.1.31126.83% 3.0.7921.95% 3.0.9614.63% 3.1.449.76% 3.1.049.76% 3.1.237.32% 3.1.124.88% 3.0.612.44% 3.1.512.44% Other00.00%

OpenVMS (23 servers) Version Number of Servers Percent 8.31043.48% 7.3730.43% 8.4417.39% 8.214.35% 6.114.35% Other00.00%

MessageWall (20 servers) Version Number of Servers Percent 1.0.81995.00% 1.0.615.00% Other00.00%

ModusMail (17 servers) Version Number of Servers Percent 4.35.477.0847.06% 4.35.480.0317.65% 3.1.302.015.88% 4.3.459.015.88% 4.35.477.815.88% 4.0.340.315.88% 4.1.361.2115.88% 3.2.315.015.88% Other00.00%

WebSTAR (17 servers) Version Number of Servers Percent Other17100.00%

MAILsweeper (9 servers) Version Number of Servers Percent 4.3.17.0333.33% 4.3.19.0222.22% 4.3.20.0222.22% 4.3.6.0111.11% 4.3.14.0111.11% Other00.00%



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