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You are viewing an outdated report.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


    
Mail (MX) Server Survey
May 1st, 2013

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 Queried2,471,319   100.0%
Number of Servers that didn't respond446,89318.08%
    Server didn't open socket435,70217.63%
    Server didn't provide banner11,1910.45%
Server provided banner2,024,42681.92%
Server banner identifies software in use1,107,03544.80%

As indicated by the above table, of the 2,471,319 servers queried, only 1,107,035 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
Exim531,62348.02%
Postfix293,50826.51%
Sendmail115,65010.45%
Microsoft84,7427.65%
MailEnable32,9292.97%
MDaemon20,8641.88%
IMail7,0140.63%
Lotus Domino4,4750.40%
WinWebMail3,1670.29%
CommuniGate Pro3,1050.28%
XMail2,0940.19%
Qmail Toaster1,6110.15%
Kerio1,4370.13%
Merak1,1640.11%
SurgeSMTP1,0160.09%
ArGoSoft6430.06%
GroupWise4270.04%
Post.Office3600.03%
Gordano Messaging Suite (GMS)3080.03%
Trend Micro2990.03%
Mirapoint1260.01%
VisNetic1220.01%
InterScan VirusWall1170.01%
Mercury500.00%
Interscan410.00%
NetIQ MailMarshal270.00%
WebSTAR V240.00%
Neon Mail Server220.00%
OpenVMS200.00%
MessageWall190.00%
WebSTAR140.00%
ModusMail120.00%
MAILsweeper50.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (531,623 servers)

Version Number of Servers Percent
4.80411,49677.40%
4.7222,7924.29%
4.6921,3464.02%
4.80.120,1843.80%
4.7717,8733.36%
4.7614,7982.78%
Other23,1344.35%

Postfix (293,508 servers)

Version Number of Servers Percent
Other293,508100.00%

Sendmail (115,650 servers)

Version Number of Servers Percent
8.13.830,62926.48%
8.13.116,90214.61%
8.14.315,58013.47%
8.14.513,37111.56%
8.14.412,74311.02%
8.12.11.200603084,4013.81%
8.13.6.200606143,3442.89%
8.14.23,0062.60%
8.11.62,0301.76%
8.12.101,7761.54%
8.14.11,6561.43%
8.13.61,4211.23%
8.13.71,3061.13%
8.12.11.200606141,1761.02%
Other6,3095.46%

Microsoft (84,742 servers)

Version Number of Servers Percent
6.0.3790.467568,55280.89%
6.0.3790.39598,52910.06%
6.0.3790.18302,3462.77%
7.5.7601.175142,0132.38%
5.0.2195.73818631.02%
Other2,4392.88%

MailEnable (32,929 servers)

Version Number of Servers Percent
1.986--5,80817.64%
5.10--2,4527.45%
6.5--1,9625.96%
4.26--1,9475.91%
6.0--1,3744.17%
1.981--1,0593.22%
1.983--6251.90%
3.62--5671.72%
0-3.63-5511.67%
5.51--5501.67%
6.70--5391.64%
6.03--5351.62%
6.57--5051.53%
6.60--4441.35%
5.11--3701.12%
6.53--3571.08%
0-1.87-3371.02%
Other12,94739.32%

MDaemon (20,864 servers)

Version Number of Servers Percent
13.0.42,27510.90%
13.0.51,8428.83%
11.0.31,7068.18%
13.0.31,5307.33%
11.0.01,2445.96%
10.0.07583.63%
12.5.67363.53%
13.0.26583.15%
10.1.26263.00%
10.1.16052.90%
9.6.14632.22%
9.6.64262.04%
10.1.04051.94%
12.5.43971.90%
13.0.03241.55%
12.5.83021.45%
9.5.22891.39%
9.6.22811.35%
12.0.32701.29%
9.6.52561.23%
12.5.32531.21%
10.0.52461.18%
10.0.22321.11%
9.5.12211.06%
9.5.62201.05%
Other4,29920.60%

IMail (7,014 servers)

Version Number of Servers Percent
8.221,14916.38%
12.2.0.23593513.33%
11.56278.94%
8.154526.44%
9.234075.80%
11.033705.28%
12.1.0.2703555.06%
12.2.0.1692824.02%
8.052583.68%
11.012393.41%
10.022253.21%
7.071522.17%
6.061271.81%
7.151261.80%
8.001181.68%
11.01031.47%
11.021001.43%
10.01981.40%
Other89112.70%

Lotus Domino (4,475 servers)

Version Number of Servers Percent
8.5.377317.27%
8.5.3FP33778.42%
8.5.3FP22796.23%
8.5.22625.85%
8.5.3FP12074.63%
8.5.2FP21944.34%
8.5.11844.11%
7.0.21673.73%
8.51393.11%
8.5.2FP31312.93%
7.0.31022.28%
8.5.2FP41012.26%
8.5.1FP5811.81%
8.5.2FP1801.79%
7.0.1751.68%
6.5.4731.63%
8.0.1721.61%
8.0.2711.59%
7.0691.54%
6.5.1671.50%
6.5.3661.47%
8.0561.25%
6.5.5491.09%
6.5471.05%
Other75316.83%

WinWebMail (3,167 servers)

Version Number of Servers Percent
3.8.1.361619.45%
3.8.0.139412.44%
3.7.6.13139.88%
3.8.1.52698.49%
3.7.3.12287.20%
3.8.1.12257.10%
3.8.2.12016.35%
3.7.7.31956.16%
3.8.5.11173.69%
3.8.3.11103.47%
3.7.1.1983.09%
3.8.3.3882.78%
3.7.5.1852.68%
3.6.3.1501.58%
3.7.7.1431.36%
3.7.0.3411.29%
3.7.0.5381.20%
3.7.0.7331.04%
Other230.73%

CommuniGate Pro (3,105 servers)

Version Number of Servers Percent
5.1.162839.11%
4.1.81193.83%
5.2.201113.57%
5.4.81053.38%
6.0.41043.35%
6.0.11033.32%
5.4.4902.90%
5.4.6882.83%
5.3.13822.64%
4.2.10702.25%
5.3.15692.22%
5.4.1682.19%
5.4.5642.06%
5.4.7622.00%
5.2.16591.90%
5.0.14591.90%
5.1.12571.84%
5.2.19561.80%
5.2.3551.77%
5.4.2481.55%
5.4.3481.55%
5.4.9461.48%
5.4.10431.38%
5.2.14411.32%
5.4.0351.13%
6.0.2341.10%
5.2.12331.06%
5.2.13321.03%
Other1,04133.53%

XMail (2,094 servers)

Version Number of Servers Percent
1.2761329.27%
1.2250624.16%
1.2533415.95%
1.2623111.03%
1.241426.78%
1.21763.63%
1.23432.05%
1.20331.58%
1.17311.48%
Other854.06%

Qmail Toaster (1,611 servers)

Version Number of Servers Percent
1.31,52494.60%
1.2472.92%
Other402.48%

Kerio (1,437 servers)

Version Number of Servers Percent
6.7.323516.35%
6.6.214810.30%
6.7.014410.02%
6.5.01147.93%
6.5.2986.82%
6.7.2835.78%
6.7.1805.57%
6.4.1795.50%
6.3.1654.52%
6.4.0513.55%
6.6.1503.48%
6.5.1443.06%
6.6.0422.92%
6.4.2292.02%
6.3.0251.74%
6.0.10211.46%
6.2.0161.11%
Other1137.86%

Merak (1,164 servers)

Version Number of Servers Percent
8.0.345338.92%
8.9.112610.82%
8.5.0756.44%
7.5.2605.15%
8.3.8544.64%
7.4.5494.21%
7.6.4443.78%
7.0.1231.98%
9.0.0201.72%
7.4.2181.55%
7.6.1181.55%
7.2.0171.46%
8.9.0141.20%
6.2.1141.20%
7.6.0131.12%
8.3.15131.12%
4.4.2131.12%
8.2.4131.12%
Other12710.91%

SurgeSMTP (1,016 servers)

Version Number of Servers Percent
6.3c2-227627.17%
6.1c-110910.73%
5.2a-1858.37%
5.3h2-2716.99%
3.9e-1474.63%
6.0a5-5353.44%
3.8k4-4262.56%
6.0a4-4222.17%
4.0u4-4212.07%
6.3d-72191.87%
4.2d2-2191.87%
4.3g2-2181.77%
5.0e4-4161.57%
3.8i3-3151.48%
Other23723.33%

ArGoSoft (643 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)15824.57%
1.8 (1.8.9.5)9014.00%
1.8 (1.8.9.3)8212.75%
1.8 (1.8.9.1)7311.35%
1.8 (1.8.8.8)426.53%
1.8 (1.8.8.7)416.38%
1.8 (1.8.9.2)223.42%
1.8 (1.8.9.4)192.95%
1.8 (1.8.8.9)132.02%
1.8 (1.8.6.0)101.56%
1.8 (1.8.8.1)71.09%
1.8 (1.8.7.3)71.09%
Other7912.29%

GroupWise (427 servers)

Version Number of Servers Percent
7.0.38018.74%
8.0.26715.69%
6.5.74911.48%
7.0.4337.73%
7.0.2266.09%
6.5.6245.62%
8.0.3194.45%
6.5.4163.75%
12.0.1153.51%
7.0.1143.28%
8.0.1143.28%
6.0.4133.04%
6.5.1102.34%
8.0.092.11%
7.071.64%
12.0.071.64%
6.5.251.17%
6.5.551.17%
Other143.28%

Post.Office (360 servers)

Version Number of Servers Percent
3.5.34512.50%
4.1.0.2349.44%
4.1.2.4298.06%
4.0.1215.83%
4.1.1195.28%
3.9.2.3143.89%
3.5.3J133.61%
4.2123.33%
3.8.3113.06%
3.9.2113.06%
4.1.0.3102.78%
3.1.282.22%
3.1.2J82.22%
4.1.0.482.22%
4.2.271.94%
3.6.271.94%
4.1.2.261.67%
4.2.1.161.67%
3.9.161.67%
3.5.161.67%
4.1.2.361.67%
4.0.1.161.67%
4.2.1.361.67%
3.9.1.251.39%
3.8.7.451.39%
3.9.1.341.11%
3.5.441.11%
3.9.2.241.11%
4.141.11%
Other359.72%

Gordano Messaging Suite (GMS) (308 servers)

Version Number of Servers Percent
Other308100.00%

Trend Micro (299 servers)

Version Number of Servers Percent
5.711638.80%
5.56923.08%
5.185117.06%
7.0299.70%
7.1227.36%
3.5331.00%
Other93.01%

Mirapoint (126 servers)

Version Number of Servers Percent
4.3.5-GA1814.29%
3.10.10a-GA1310.32%
4.2.3-GA118.73%
4.1.10-GA107.94%
3.10.9-GA75.56%
4.3.6-GA64.76%
4.1.9-GA53.97%
4.1.4-GA53.97%
4.2.4-GA53.97%
3.10.8-GA53.97%
4.1.8-GA43.17%
3.7.5a-GA32.38%
3.8.4-GA32.38%
3.8.3-GA32.38%
4.1.3-GA32.38%
3.8.5-GA32.38%
4.1.5-GA32.38%
4.0.5a21.59%
4.3.3-GA21.59%
3.10.2-GA21.59%
3.10.3-GA21.59%
4.3.4-GA21.59%
Other97.14%

VisNetic (122 servers)

Version Number of Servers Percent
9.3.2.03327.05%
9.1.4.11613.11%
8.0.3.175.74%
7.6.1.064.92%
7.2.4.154.10%
5.5.8.354.10%
8.0.3.054.10%
6.2.2.054.10%
5.8.6.654.10%
8.5.0.843.28%
8.0.343.28%
5.0.2.343.28%
9.1.4.032.46%
5.8.6.421.64%
5.3.5.021.64%
8.3.5.021.64%
5.4.5.421.64%
Other129.84%

InterScan VirusWall (117 servers)

Version Number of Servers Percent
Other117100.00%

Mercury (50 servers)

Version Number of Servers Percent
1.482754.00%
3.321326.00%
1.4724.00%
3.21c24.00%
3.01a24.00%
3.2112.00%
1.4412.00%
4.x12.00%
3.3012.00%
Other00.00%

Interscan (41 servers)

Version Number of Servers Percent
3.55 (build 1016)819.51%
3.81-Build_1022819.51%
3.55 (build 1029)614.63%
3.53 (build 1493)49.76%
3.81-Build_108437.32%
3.53 (build 2011)37.32%
3.8-Build_301324.88%
3.5 (build 1294)12.44%
3.53 (build 2017)12.44%
3.51 (build 1337)12.44%
3.55 (build 1020)12.44%
3.53 (build 2013)12.44%
3.8-Build_304512.44%
3.8-Build_108012.44%
Other00.00%

NetIQ MailMarshal (27 servers)

Version Number of Servers Percent
6.0.3.81866.67%
5.5.6.7311.11%
5.5.6.527.41%
5.5.6.627.41%
5.5.5.613.70%
5.5.4.1713.70%
Other00.00%

WebSTAR V (24 servers)

Version Number of Servers Percent
5.4.11458.33%
5.4.0520.83%
5.3.228.33%
5.3.428.33%
5.3.314.17%
Other00.00%

Neon Mail Server (22 servers)

Version Number of Servers Percent
3.0.7627.27%
3.1.3418.18%
3.1.4313.64%
3.1.2313.64%
3.0.929.09%
3.1.029.09%
3.1.514.55%
3.0.614.55%
Other00.00%

OpenVMS (20 servers)

Version Number of Servers Percent
8.3945.00%
8.4630.00%
7.3420.00%
8.215.00%
Other00.00%

MessageWall (19 servers)

Version Number of Servers Percent
1.0.81894.74%
1.0.615.26%
Other00.00%

WebSTAR (14 servers)

Version Number of Servers Percent
Other14100.00%

ModusMail (12 servers)

Version Number of Servers Percent
4.35.477.0650.00%
4.1.361.2118.33%
3.2.315.018.33%
4.0.340.318.33%
4.35.480.018.33%
4.35.477.818.33%
3.1.302.018.33%
Other00.00%

MAILsweeper (5 servers)

Version Number of Servers Percent
4.3.17.0240.00%
4.3.19.0240.00%
4.3.20.0120.00%
Other00.00%




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