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You are viewing an outdated report. The latest version of this report was published on April 1st, 2017


    
Mail (MX) Server Survey
February 1st, 2017

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 Queried2,010,106   100.0%
Number of Servers that didn't respond355,21317.67%
    Server didn't open socket347,59017.29%
    Server didn't provide banner7,6230.38%
Server provided banner1,654,89382.33%
Server banner identifies software in use1,007,31750.11%

As indicated by the above table, of the 2,010,106 servers queried, only 1,007,317 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
Exim561,83355.78%
Postfix333,40033.10%
Sendmail52,4565.21%
MailEnable23,6482.35%
MDaemon13,4401.33%
Microsoft11,8811.18%
IMail2,2930.23%
CommuniGate Pro1,8930.19%
Lotus Domino1,1690.12%
WinWebMail1,0870.11%
XMail1,0860.11%
Qmail Toaster8180.08%
SurgeSMTP6930.07%
Kerio4880.05%
Merak3070.03%
ArGoSoft2220.02%
Post.Office1640.02%
Gordano Messaging Suite (GMS)1230.01%
GroupWise1040.01%
Trend Micro690.01%
InterScan VirusWall310.00%
VisNetic300.00%
Mirapoint250.00%
OpenVMS150.00%
Mercury90.00%
ModusMail90.00%
WebSTAR V70.00%
Interscan50.00%
MessageWall40.00%
Neon Mail Server40.00%
WebSTAR20.00%
NetIQ MailMarshal10.00%
MAILsweeper10.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (561,833 servers)

Version Number of Servers Percent
4.87411,79673.30%
4.8646,7818.33%
4.8420,7833.70%
4.8813,8542.47%
4.8012,1782.17%
4.729,4971.69%
4.859,4551.68%
4.768,1351.45%
4.827,7781.38%
4.80.16,1381.09%
Other15,4382.75%

Postfix (333,400 servers)

Version Number of Servers Percent
Other333,400100.00%

Sendmail (52,456 servers)

Version Number of Servers Percent
8.14.512,50323.84%
8.14.411,78122.46%
8.13.89,26417.66%
8.13.15,58210.64%
8.14.32,6235.00%
8.15.22,1094.02%
8.14.91,5042.87%
8.14.71,4802.82%
8.12.11.200603088721.66%
8.14.25421.03%
Other4,1968.00%

MailEnable (23,648 servers)

Version Number of Servers Percent
9.00--3,02912.81%
8.60--1,5256.45%
8.53--1,1724.96%
6.5--1,0744.54%
1.986--8703.68%
8.51--8113.43%
8.04--5912.50%
8.60-8.60-4772.02%
5.10--4701.99%
8.50--4371.85%
8.00--3791.60%
9.53--3671.55%
6.0--3261.38%
7.06--3141.33%
4.26--3111.32%
9.50--2901.23%
9.12--2691.14%
Other10,93646.24%

MDaemon (13,440 servers)

Version Number of Servers Percent
16.5.21,85013.76%
16.5.19376.97%
16.0.48876.60%
13.5.15824.33%
11.0.35173.85%
11.0.05173.85%
13.0.55103.79%
13.0.45063.76%
13.6.33892.89%
15.0.33352.49%
16.5.03152.34%
12.5.62732.03%
15.5.32631.96%
12.5.42291.70%
14.5.22231.66%
10.0.02191.63%
16.0.12141.59%
16.0.22081.55%
10.1.21981.47%
15.5.21371.02%
10.1.01361.01%
Other3,99529.72%

Microsoft (11,881 servers)

Version Number of Servers Percent
6.0.3790.46757,53863.45%
7.5.7601.175141,25510.56%
6.0.3790.39598997.57%
8.5.9600.163847035.92%
6.0.3790.18302462.07%
7.0.6002.182642412.03%
8.0.9200.163841981.67%
5.0.2195.53291791.51%
5.0.2195.73811371.15%
Other4854.08%

IMail (2,293 servers)

Version Number of Servers Percent
12.5.5.11533614.65%
8.221908.29%
12.4.1.151868.11%
12.5.4.1461727.50%
12.5.3.931707.41%
9.231566.80%
8.151245.41%
12.3.0.1001084.71%
8.05843.66%
11.03672.92%
11.5662.88%
10.02361.57%
7.07361.57%
12.5.1.60351.53%
7.15341.48%
11.02331.44%
12.5.3.99311.35%
12.2.0.235271.18%
12.1.0.270261.13%
12.5.2.62241.05%
8.00241.05%
Other32814.30%

CommuniGate Pro (1,893 servers)

Version Number of Servers Percent
5.1.161789.40%
6.1.111075.65%
6.1.13854.49%
6.1.10794.17%
5.4.11784.12%
6.1.12733.86%
6.0.11713.75%
5.2.20693.65%
6.1.14603.17%
6.0.9512.69%
6.1.2502.64%
5.3.13432.27%
6.1.8412.17%
5.2.3371.95%
5.0.14361.90%
4.1.8311.64%
6.1.5311.64%
5.3.15291.53%
6.0.10281.48%
6.1.7251.32%
5.1.12221.16%
6.1.4221.16%
5.2.16211.11%
6.1.9211.11%
5.4.4201.06%
5.4.5201.06%
Other56529.85%

Lotus Domino (1,169 servers)

Version Number of Servers Percent
8.5.3FP621618.48%
8.5.316213.86%
8.5.2514.36%
8.5.1453.85%
7.0.2423.59%
8.5403.42%
8.5.3FP4352.99%
8.5.2FP4302.57%
8.5.2FP3302.57%
8.5.3FP2282.40%
8.5.3FP1262.22%
8.0.1262.22%
8.5.3FP3252.14%
8.5.3FP5242.05%
7.0.3231.97%
8.0201.71%
8.5.2FP2191.63%
8.5.1FP5181.54%
7.0.1181.54%
7.0171.45%
7.0.4161.37%
6.5.1151.28%
6.5.4131.11%
8.0.2121.03%
6.5.5121.03%
Other20617.62%

WinWebMail (1,087 servers)

Version Number of Servers Percent
3.9.0.728125.85%
3.8.1.316615.27%
3.8.0.1777.08%
3.7.6.1766.99%
3.9.0.1726.62%
3.8.1.5565.15%
3.8.1.1464.23%
3.8.5.1454.14%
3.7.3.1454.14%
3.8.6.1423.86%
3.7.7.3393.59%
3.7.1.1242.21%
3.8.2.1232.12%
3.8.3.1201.84%
3.8.3.3121.10%
3.9.0.5111.01%
3.7.0.5111.01%
Other413.77%

XMail (1,086 servers)

Version Number of Servers Percent
1.2746042.36%
1.2233030.39%
1.25857.83%
1.26827.55%
1.24484.42%
1.21242.21%
1.23161.47%
Other413.78%

Qmail Toaster (818 servers)

Version Number of Servers Percent
1.373790.10%
1.03354.28%
1.2151.83%
1.03.691.10%
Other222.69%

SurgeSMTP (693 servers)

Version Number of Servers Percent
7.1e-115722.66%
7.2a-110515.15%
6.5a2-2547.79%
7.2e-2466.64%
6.9c-1385.48%
6.7c-1294.18%
6.5a-1284.04%
7.0c2-2213.03%
3.9e-1182.60%
5.2a-1162.31%
6.1c-1152.16%
6.3c2-2131.88%
4.0u4-4111.59%
6.4a-1101.44%
3.8k4-491.30%
5.3h2-271.01%
7.1f-3271.01%
Other10915.73%

Kerio (488 servers)

Version Number of Servers Percent
6.7.310321.11%
6.7.05310.86%
6.6.2428.61%
6.5.2408.20%
6.5.0306.15%
6.4.1275.53%
6.7.2275.53%
6.6.1234.71%
6.7.1224.51%
6.3.1173.48%
6.3.0173.48%
6.5.1142.87%
6.4.0142.87%
6.1.391.84%
6.6.081.64%
5.7.961.23%
6.2.061.23%
6.1.051.02%
6.4.251.02%
Other204.10%

Merak (307 servers)

Version Number of Servers Percent
8.0.39129.64%
8.9.14213.68%
8.5.0278.79%
7.4.5196.19%
7.5.2185.86%
7.6.4134.23%
8.3.8134.23%
7.6.1123.91%
8.3.1572.28%
7.2.072.28%
7.4.272.28%
7.0.141.30%
8.9.041.30%
6.0.841.30%
Other3912.70%

ArGoSoft (222 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)7634.23%
1.8 (1.8.9.5)2712.16%
1.8 (1.8.9.1)2410.81%
1.8 (1.8.9.3)229.91%
1.8 (1.8.8.8)104.50%
1.8 (1.8.8.7)83.60%
1.8 (1.8.9.2)62.70%
1.8 (1.8.6.0)62.70%
1.8 (1.8.7.3)62.70%
1.8 (1.8.9.4)41.80%
1.8 (1.8.8.9)41.80%
Other2913.06%

Post.Office (164 servers)

Version Number of Servers Percent
4.2.23420.73%
4.32917.68%
4.1.2.42112.80%
3.5.31810.98%
4.2.1.384.88%
3.9.2.353.05%
3.1.242.44%
3.9.242.44%
4.1.142.44%
4.2.1.142.44%
4.0.142.44%
4.1.2.331.83%
3.8.7.431.83%
3.5.131.83%
3.5.3J21.22%
4.1.0.221.22%
3.5.421.22%
4.1.0.321.22%
Other127.32%

Gordano Messaging Suite (GMS) (123 servers)

Version Number of Servers Percent
Other123100.00%

GroupWise (104 servers)

Version Number of Servers Percent
14.2.12927.88%
14.2.01514.42%
14.0.187.69%
14.0.076.73%
14.0.265.77%
6.5.765.77%
7.0.343.85%
7.0.443.85%
12.0.443.85%
6.0.332.88%
8.0.332.88%
12.0.121.92%
7.0.221.92%
6.0.221.92%
Other98.65%

Trend Micro (69 servers)

Version Number of Servers Percent
5.72637.68%
5.181217.39%
5.51217.39%
7.0710.14%
7.545.80%
3.5322.90%
7.122.90%
811.45%
8.511.45%
8.5.211.45%
9.011.45%
Other00.00%

InterScan VirusWall (31 servers)

Version Number of Servers Percent
Other31100.00%

VisNetic (30 servers)

Version Number of Servers Percent
9.3.2.01033.33%
6.2.2.026.67%
9.1.4.126.67%
5.0.2.326.67%
5.8.6.626.67%
7.6.1.013.33%
5.3.5.013.33%
8.5.0.813.33%
5.0.2.013.33%
9.1.4.1 provided by Techfount Systems Pte Ltd13.33%
8.0.3.113.33%
9.1.4.013.33%
8.0.313.33%
7.2.4.013.33%
8.3.0.113.33%
8.5.0.513.33%
5.5.8.313.33%
Other00.00%

Mirapoint (25 servers)

Version Number of Servers Percent
4.4.3-GA520.00%
4.4.5-GA416.00%
4.3.5-GA312.00%
4.4.2a-FCS312.00%
4.4.7-GA28.00%
4.4.4-GA28.00%
3.7.5a-GA14.00%
4.4.6-GA14.00%
3.10.10a-GA14.00%
4.1.9-GA14.00%
4.3.6-GA14.00%
4.4.5a-GA14.00%
Other00.00%

OpenVMS (15 servers)

Version Number of Servers Percent
7.3533.33%
8.4533.33%
8.3426.67%
8.216.67%
Other00.00%

Mercury (9 servers)

Version Number of Servers Percent
3.32444.44%
1.48333.33%
4.x111.11%
3.21111.11%
Other00.00%

ModusMail (9 servers)

Version Number of Servers Percent
4.35.477.0555.56%
4.1.361.21222.22%
4.35.477.8111.11%
3.2.315.0111.11%
Other00.00%

WebSTAR V (7 servers)

Version Number of Servers Percent
5.4.1457.14%
5.3.4114.29%
5.4.0114.29%
5.3.2114.29%
Other00.00%

Interscan (5 servers)

Version Number of Servers Percent
3.81-Build_1022120.00%
3.8-Build_1080120.00%
3.5 (build 1294)120.00%
3.81-Build_1084120.00%
3.8-Build_3013120.00%
Other00.00%

MessageWall (4 servers)

Version Number of Servers Percent
1.0.84100.00%
Other00.00%

Neon Mail Server (4 servers)

Version Number of Servers Percent
3.1.0250.00%
3.1.2125.00%
3.0.7125.00%
Other00.00%

WebSTAR (2 servers)

Version Number of Servers Percent
Other2100.00%

NetIQ MailMarshal (1 servers)

Version Number of Servers Percent
5.5.6.71100.00%
Other00.00%

MAILsweeper (1 servers)

Version Number of Servers Percent
4.3.20.01100.00%
Other00.00%




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