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You are viewing an outdated report. The latest version of this report was published on November 1st, 2018


    
Mail (MX) Server Survey
May 1st, 2015

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 Queried2,291,592   100.0%
Number of Servers that didn't respond396,09317.28%
    Server didn't open socket387,59416.91%
    Server didn't provide banner8,4990.37%
Server provided banner1,895,49982.72%
Server banner identifies software in use1,086,90647.43%

As indicated by the above table, of the 2,291,592 servers queried, only 1,086,906 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
Exim581,99753.55%
Postfix328,76630.25%
Sendmail82,4007.58%
Microsoft30,7872.83%
MailEnable28,8622.66%
MDaemon17,2771.59%
IMail4,0140.37%
CommuniGate Pro2,4610.23%
Lotus Domino2,2610.21%
WinWebMail1,6640.15%
XMail1,5600.14%
Qmail Toaster1,2080.11%
Kerio8260.08%
SurgeSMTP8020.07%
Merak5850.05%
ArGoSoft3770.03%
Post.Office2430.02%
GroupWise2080.02%
Gordano Messaging Suite (GMS)1990.02%
Trend Micro1430.01%
InterScan VirusWall600.01%
Mirapoint580.01%
VisNetic410.00%
Mercury240.00%
OpenVMS160.00%
WebSTAR V150.00%
Interscan130.00%
Neon Mail Server130.00%
ModusMail90.00%
NetIQ MailMarshal60.00%
MessageWall50.00%
MAILsweeper30.00%
WebSTAR30.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (581,997 servers)

Version Number of Servers Percent
4.85312,90653.76%
4.82138,65723.82%
4.8431,6035.43%
4.8020,5843.54%
4.80.120,1143.46%
4.7616,3882.82%
4.7216,1492.77%
4.697,5771.30%
Other18,0193.10%

Postfix (328,766 servers)

Version Number of Servers Percent
Other328,766100.00%

Sendmail (82,400 servers)

Version Number of Servers Percent
8.14.517,78321.58%
8.13.817,69121.47%
8.14.414,22417.26%
8.13.110,37012.58%
8.14.35,7727.00%
8.12.11.200603082,0212.45%
8.14.71,7662.14%
8.13.6.200606141,6371.99%
8.14.91,4731.79%
8.14.21,0831.31%
8.11.69071.10%
8.12.108981.09%
Other6,7758.22%

Microsoft (30,787 servers)

Version Number of Servers Percent
6.0.3790.467523,23775.48%
6.0.3790.39592,4708.02%
7.5.7601.175142,0906.79%
6.0.3790.18307002.27%
7.0.6002.182643891.26%
5.0.2195.73813331.08%
8.5.9600.163843141.02%
Other1,2544.07%

MailEnable (28,862 servers)

Version Number of Servers Percent
1.986--2,1857.57%
6.5--2,0176.99%
8.53--1,2754.42%
5.10--1,0643.69%
8.51--1,0063.49%
8.04--9053.14%
4.26--8082.80%
6.0--7802.70%
8.50--7302.53%
8.00--6892.39%
7.06--6712.32%
8.60-8.60-6192.14%
8.60--8.605912.05%
8.60--5661.96%
8.55--4581.59%
7.07--4301.49%
7.0--4171.44%
1.981--4101.42%
7.50--4091.42%
6.88-6.88-3961.37%
6.57--3781.31%
6.70--3781.31%
7.53--3661.27%
8.56--3231.12%
Other10,99138.08%

MDaemon (17,277 servers)

Version Number of Servers Percent
15.0.01,6999.83%
14.5.31,2557.26%
11.0.39465.48%
14.5.28975.19%
11.0.08624.99%
13.5.18154.72%
13.0.48064.67%
13.0.57224.18%
14.0.36533.78%
12.5.64312.49%
10.0.04292.48%
14.0.24212.44%
10.1.23361.94%
12.5.42921.69%
10.1.12861.66%
13.6.22731.58%
14.5.02521.46%
13.6.02421.40%
9.6.12231.29%
9.6.62201.27%
13.5.22151.24%
9.6.22141.24%
10.1.02111.22%
13.0.22041.18%
13.0.31901.10%
13.6.31761.02%
Other4,00723.19%

IMail (4,014 servers)

Version Number of Servers Percent
8.2243710.89%
12.3.0.1003779.39%
12.4.2.273488.67%
12.5.1.602917.25%
9.232556.35%
8.152135.31%
12.4.1.151904.73%
8.051694.21%
12.2.0.2351583.94%
11.51323.29%
11.031162.89%
12.5.0.2461022.54%
12.5.2.62932.32%
12.4.0.166842.09%
7.15781.94%
10.02711.77%
11.01631.57%
12.4.1.9621.54%
11.02621.54%
7.07611.52%
6.06591.47%
12.5.0.248541.35%
8.00511.27%
Other48812.16%

CommuniGate Pro (2,461 servers)

Version Number of Servers Percent
5.1.162449.91%
6.0.91917.76%
6.0.111295.24%
6.0.101084.39%
5.2.20873.54%
5.4.11863.49%
6.0.7853.45%
6.1.2753.05%
6.0.8572.32%
5.3.13562.28%
5.3.15542.19%
4.1.8522.11%
6.0.5491.99%
5.0.14491.99%
6.1.1471.91%
5.2.3471.91%
5.1.12411.67%
4.2.10321.30%
5.4.4321.30%
5.2.16311.26%
5.4.6301.22%
5.4.1291.18%
5.4.10291.18%
6.0.1281.14%
5.2.19261.06%
5.4.8251.02%
Other74230.15%

Lotus Domino (2,261 servers)

Version Number of Servers Percent
8.5.333914.99%
8.5.3FP626011.50%
8.5.21185.22%
8.5.3FP3924.07%
8.5.1914.02%
7.0.2733.23%
8.5.2FP4703.10%
8.5.3FP2693.05%
8.5.3FP4622.74%
8.5.2FP2572.52%
8.5.3FP5572.52%
8.5572.52%
8.5.2FP3552.43%
8.5.3FP1542.39%
7.0.3472.08%
8.5.1FP5411.81%
7.0391.72%
8.0.1351.55%
8.5.2FP1341.50%
8.0331.46%
7.0.1321.42%
6.5.4301.33%
6.5.1291.28%
6.5.3281.24%
8.0.2261.15%
Other43319.15%

WinWebMail (1,664 servers)

Version Number of Servers Percent
3.8.1.329617.79%
3.9.0.719711.84%
3.7.6.11549.25%
3.8.0.11388.29%
3.9.0.11177.03%
3.8.1.1915.47%
3.8.1.5885.29%
3.8.5.1855.11%
3.7.3.1764.57%
3.8.6.1764.57%
3.7.7.3674.03%
3.7.1.1462.76%
3.8.2.1452.70%
3.8.3.1281.68%
3.7.5.1231.38%
3.7.0.5201.20%
3.9.0.5201.20%
3.7.0.3201.20%
3.8.3.3171.02%
Other603.61%

XMail (1,560 servers)

Version Number of Servers Percent
1.2756936.47%
1.2244628.59%
1.2518611.92%
1.261398.91%
1.24754.81%
1.21362.31%
1.23241.54%
1.20211.35%
Other644.10%

Qmail Toaster (1,208 servers)

Version Number of Servers Percent
1.31,14895.03%
1.2201.66%
1.03.5141.16%
Other262.15%

Kerio (826 servers)

Version Number of Servers Percent
6.7.315819.13%
6.7.08510.29%
6.6.2759.08%
6.5.2607.26%
6.5.0607.26%
6.7.2495.93%
6.4.1475.69%
6.6.1364.36%
6.7.1364.36%
6.3.1354.24%
6.5.1283.39%
6.3.0232.78%
6.4.0192.30%
6.4.2161.94%
6.6.0121.45%
6.2.0101.21%
6.1.3101.21%
Other678.11%

SurgeSMTP (802 servers)

Version Number of Servers Percent
6.7c-113116.33%
6.5a2-212215.21%
6.9c-1799.85%
6.5a-1587.23%
6.3c2-2334.11%
5.2a-1263.24%
6.4a-1263.24%
5.3h2-2253.12%
6.8g-1212.62%
3.9e-1212.62%
3.8k4-4192.37%
6.8h-8151.87%
6.1c-1141.75%
4.0u4-4121.50%
6.8c-1101.25%
6.0a5-5101.25%
6.9a-191.12%
4.2d2-291.12%
Other16220.20%

Merak (585 servers)

Version Number of Servers Percent
8.0.319934.02%
8.9.17312.48%
8.5.0498.38%
8.3.8325.47%
7.4.5305.13%
7.5.2294.96%
7.6.4223.76%
7.6.1142.39%
7.0.1132.22%
8.3.15122.05%
9.0.0101.71%
7.2.0101.71%
7.4.291.54%
8.9.071.20%
6.2.161.03%
Other7011.97%

ArGoSoft (377 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)10527.85%
1.8 (1.8.9.5)5514.59%
1.8 (1.8.9.3)5213.79%
1.8 (1.8.9.1)307.96%
1.8 (1.8.8.7)246.37%
1.8 (1.8.8.8)184.77%
1.8 (1.8.9.4)123.18%
1.8 (1.8.9.2)112.92%
1.8 (1.8.7.3)82.12%
1.8 (1.8.6.0)51.33%
1.8 (1.8.8.4)41.06%
1.8 (1.8.8.9)41.06%
Other4913.00%

Post.Office (243 servers)

Version Number of Servers Percent
4.2.24719.34%
3.5.33313.58%
4.1.2.43213.17%
4.1.0.2156.17%
4.1.1135.35%
4.2.1.3104.12%
4.0.183.29%
3.9.2.383.29%
4.372.88%
4.262.47%
4.2.1.162.47%
4.1.0.362.47%
3.1.2J52.06%
3.5.3J52.06%
3.8.7.441.65%
3.9.141.65%
4.1.2.341.65%
3.1.241.65%
3.5.131.23%
Other239.47%

GroupWise (208 servers)

Version Number of Servers Percent
14.0.12913.94%
7.0.32712.98%
6.5.72110.10%
8.0.3199.13%
8.0.2188.65%
7.0.4125.77%
7.0.2115.29%
14.0.0115.29%
6.5.683.85%
12.0.283.85%
6.5.462.88%
7.0.162.88%
6.0.452.40%
14.0.241.92%
6.5.531.44%
8.0.031.44%
12.0.331.44%
Other146.73%

Gordano Messaging Suite (GMS) (199 servers)

Version Number of Servers Percent
Other199100.00%

Trend Micro (143 servers)

Version Number of Servers Percent
5.75437.76%
5.182718.88%
5.52517.48%
7.0139.09%
7.1106.99%
8.542.80%
3.5332.10%
7.521.40%
Other53.50%

InterScan VirusWall (60 servers)

Version Number of Servers Percent
Other60100.00%

Mirapoint (58 servers)

Version Number of Servers Percent
4.3.5-GA915.52%
4.4.3-GA58.62%
4.4.2a-FCS58.62%
4.3.6-GA58.62%
4.4.5-GA46.90%
4.1.10-GA46.90%
4.4.4-GA35.17%
3.10.10a-GA23.45%
4.4.6-GA23.45%
4.4.5a-GA23.45%
3.8.4-GA23.45%
4.3.3-GA23.45%
4.1.5-GA23.45%
4.3.7-GA23.45%
3.10.2-GA11.72%
3.8.7a11.72%
3.7.5a-GA11.72%
4.2.3-GA11.72%
4.1.9-GA11.72%
4.1.6-GA11.72%
4.1.3-GA11.72%
3.10.4-GA11.72%
3.8.5-GA11.72%
Other00.00%

VisNetic (41 servers)

Version Number of Servers Percent
9.3.2.0819.51%
9.1.4.1614.63%
8.5.0.849.76%
6.2.2.037.32%
5.0.2.324.88%
9.1.4.024.88%
7.2.4.124.88%
7.6.1.024.88%
5.5.8.324.88%
5.8.6.624.88%
8.3.0.112.44%
8.0.312.44%
5.4.5.412.44%
8.0.3.112.44%
5.4.512.44%
7.2.4.012.44%
9.1.4.1 provided by Techfount Systems Pte Ltd12.44%
5.3.5.012.44%
Other00.00%

Mercury (24 servers)

Version Number of Servers Percent
3.321145.83%
1.481145.83%
3.2114.17%
4.x14.17%
Other00.00%

OpenVMS (16 servers)

Version Number of Servers Percent
8.3743.75%
7.3531.25%
8.4425.00%
Other00.00%

WebSTAR V (15 servers)

Version Number of Servers Percent
5.4.1640.00%
5.4.0533.33%
5.3.4213.33%
5.3.316.67%
5.3.216.67%
Other00.00%

Interscan (13 servers)

Version Number of Servers Percent
3.55 (build 1016)323.08%
3.55 (build 1029)323.08%
3.81-Build_108417.69%
3.5 (build 1294)17.69%
3.8-Build_301317.69%
3.53 (build 2013)17.69%
3.81-Build_102217.69%
3.53 (build 2017)17.69%
3.8-Build_108017.69%
Other00.00%

Neon Mail Server (13 servers)

Version Number of Servers Percent
3.0.7430.77%
3.1.4215.38%
3.1.2215.38%
3.1.0215.38%
3.1.317.69%
3.0.817.69%
3.0.917.69%
Other00.00%

ModusMail (9 servers)

Version Number of Servers Percent
4.35.477.0666.67%
4.1.361.21111.11%
3.2.315.0111.11%
4.35.477.8111.11%
Other00.00%

NetIQ MailMarshal (6 servers)

Version Number of Servers Percent
6.0.3.8233.33%
5.5.6.5233.33%
5.5.4.17116.67%
5.5.6.7116.67%
Other00.00%

MessageWall (5 servers)

Version Number of Servers Percent
1.0.85100.00%
Other00.00%

MAILsweeper (3 servers)

Version Number of Servers Percent
4.3.17.0266.67%
4.3.20.0133.33%
Other00.00%

WebSTAR (3 servers)

Version Number of Servers Percent
Other3100.00%




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