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You are viewing an outdated report.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
June 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 Queried2,031,277   100.0%
Number of Servers that didn't respond365,19717.98%
    Server didn't open socket357,50417.60%
    Server didn't provide banner7,6930.38%
Server provided banner1,666,08082.02%
Server banner identifies software in use1,018,49250.14%

As indicated by the above table, of the 2,031,277 servers queried, only 1,018,492 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
Exim573,20656.28%
Postfix339,42833.33%
Sendmail49,4214.85%
MailEnable23,2912.29%
MDaemon12,3441.21%
Microsoft10,3821.02%
IMail2,1440.21%
CommuniGate Pro1,8040.18%
WinWebMail1,0770.11%
XMail1,0590.10%
Lotus Domino1,0520.10%
Qmail Toaster8230.08%
SurgeSMTP6620.06%
Kerio4510.04%
Merak3120.03%
MagicMail2590.03%
ArGoSoft2000.02%
Post.Office1650.02%
Gordano Messaging Suite (GMS)1130.01%
GroupWise1000.01%
Trend Micro680.01%
VisNetic300.00%
InterScan VirusWall270.00%
Mirapoint180.00%
OpenVMS160.00%
Mercury90.00%
ModusMail70.00%
WebSTAR V70.00%
Interscan60.00%
MessageWall50.00%
Neon Mail Server40.00%
WebSTAR10.00%
MAILsweeper10.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (573,206 servers)

Version Number of Servers Percent
4.89256,45944.74%
4.87184,16332.13%
4.8841,9397.32%
4.8419,3863.38%
4.8011,3031.97%
4.8610,5101.83%
4.728,0781.41%
4.858,0381.40%
4.767,4931.31%
4.827,2571.27%
Other18,5803.24%

Postfix (339,428 servers)

Version Number of Servers Percent
Other339,428100.00%

Sendmail (49,421 servers)

Version Number of Servers Percent
8.14.511,83023.94%
8.14.411,57723.43%
8.13.88,37316.94%
8.13.15,07910.28%
8.15.22,4484.95%
8.14.32,4164.89%
8.14.71,5503.14%
8.14.91,4422.92%
8.12.11.200603086991.41%
8.14.24951.00%
Other3,5127.11%

MailEnable (23,291 servers)

Version Number of Servers Percent
9.00--3,21913.82%
8.60--1,3005.58%
8.53--1,1054.74%
6.5--9734.18%
8.51--7573.25%
1.986--6972.99%
9.16--6562.82%
8.04--5492.36%
8.60-8.60-4451.91%
5.10--3861.66%
8.50--3721.60%
9.53--3691.58%
8.00--3441.48%
4.26--2691.15%
6.0--2661.14%
7.06--2661.14%
9.50--2361.01%
Other11,08247.58%

MDaemon (12,344 servers)

Version Number of Servers Percent
16.5.21,56712.69%
17.0.01,0478.48%
13.5.15724.63%
16.0.45664.59%
11.0.05134.16%
11.0.34903.97%
13.0.44783.87%
13.0.54413.57%
16.5.14293.48%
13.6.34253.44%
15.0.32732.21%
12.5.62662.15%
12.5.42391.94%
10.0.02051.66%
14.5.21971.60%
15.5.31951.58%
10.1.21781.44%
16.0.11651.34%
16.5.01471.19%
10.1.11281.04%
13.0.21251.01%
Other3,69829.96%

Microsoft (10,382 servers)

Version Number of Servers Percent
6.0.3790.46756,38661.51%
7.5.7601.175141,16611.23%
6.0.3790.39597717.43%
8.5.9600.163847527.24%
6.0.3790.18302172.09%
8.0.9200.163841921.85%
5.0.2195.53291731.67%
7.0.6002.182641621.56%
5.0.2195.73811141.10%
Other4494.32%

IMail (2,144 servers)

Version Number of Servers Percent
12.5.5.11540919.08%
12.4.1.151858.63%
12.5.3.931607.46%
8.221597.42%
12.5.4.1461517.04%
9.231386.44%
8.151105.13%
12.3.0.100984.57%
8.05713.31%
11.03602.80%
11.5542.52%
7.07321.49%
12.5.1.60321.49%
7.15291.35%
10.02291.35%
11.02281.31%
12.5.5.117261.21%
12.5.2.62221.03%
Other35116.37%

CommuniGate Pro (1,804 servers)

Version Number of Servers Percent
5.1.161669.20%
6.1.161085.99%
6.1.11884.88%
6.1.10693.82%
6.0.11643.55%
5.4.11633.49%
5.2.20613.38%
6.1.15603.33%
6.1.13583.22%
6.1.14522.88%
6.0.9482.66%
6.1.12462.55%
5.3.13402.22%
6.1.2392.16%
5.2.3331.83%
5.0.14331.83%
6.1.8301.66%
6.1.5281.55%
4.1.8281.55%
6.2271.50%
6.0.10241.33%
5.4.4241.33%
5.3.15191.05%
Other59633.04%

WinWebMail (1,077 servers)

Version Number of Servers Percent
3.9.0.726524.61%
3.8.1.317616.34%
3.9.0.1777.15%
3.7.6.1716.59%
3.8.0.1666.13%
3.8.1.5484.46%
3.9.2.1423.90%
3.8.1.1413.81%
3.7.3.1403.71%
3.8.5.1373.44%
3.8.6.1363.34%
3.7.7.3333.06%
3.7.1.1222.04%
3.8.2.1211.95%
3.8.3.1161.49%
3.7.5.1131.21%
3.7.0.5111.02%
Other625.76%

XMail (1,059 servers)

Version Number of Servers Percent
1.2744842.30%
1.2233331.44%
1.25858.03%
1.26746.99%
1.24474.44%
1.21222.08%
1.23151.42%
Other353.31%

Lotus Domino (1,052 servers)

Version Number of Servers Percent
8.5.3FP619618.63%
8.5.314213.50%
8.5.2514.85%
7.0.2403.80%
8.5373.52%
8.5.1363.42%
8.5.3FP4323.04%
8.5.3FP2282.66%
8.5.2FP4272.57%
8.5.3FP1262.47%
8.5.2FP3252.38%
7.0.3252.38%
8.5.3FP3232.19%
8.0.1222.09%
8.5.3FP5212.00%
8.5.2FP2181.71%
8.0181.71%
8.5.1FP5151.43%
6.5.1141.33%
7.0.4141.33%
7.0.1141.33%
7.0131.24%
7.0.3FP1131.24%
6.5.4121.14%
Other19018.06%

Qmail Toaster (823 servers)

Version Number of Servers Percent
1.371887.24%
1.03607.29%
1.2141.70%
1.03.5121.46%
1.03.691.09%
Other101.22%

SurgeSMTP (662 servers)

Version Number of Servers Percent
7.2i-113019.64%
7.1e-110315.56%
7.2a-1436.50%
7.2e-2436.50%
6.5a2-2436.50%
6.9c-1365.44%
6.7c-1274.08%
6.5a-1243.63%
7.0c2-2192.87%
3.9e-1182.72%
5.2a-1152.27%
6.3c2-2111.66%
4.0u4-4101.51%
5.3h2-291.36%
6.1c-191.36%
6.4a-191.36%
3.8k4-481.21%
Other10515.86%

Kerio (451 servers)

Version Number of Servers Percent
6.7.310122.39%
6.7.05011.09%
6.5.2459.98%
6.6.2398.65%
6.7.2306.65%
6.5.0296.43%
6.7.1194.21%
6.4.1173.77%
6.6.1173.77%
6.3.1163.55%
6.5.1132.88%
6.4.0122.66%
6.3.0112.44%
6.6.081.77%
6.1.381.77%
6.4.251.11%
6.2.051.11%
Other265.76%

Merak (312 servers)

Version Number of Servers Percent
8.0.38828.21%
8.9.15016.03%
8.5.0278.65%
7.4.5196.09%
7.5.2165.13%
8.3.8154.81%
7.6.4144.49%
7.6.1123.85%
7.4.272.24%
8.3.1561.92%
7.0.151.60%
6.1.041.28%
7.2.041.28%
9.0.341.28%
Other4113.14%

MagicMail (259 servers)

Version Number of Servers Percent
Other259100.00%

ArGoSoft (200 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)7035.00%
1.8 (1.8.9.5)2613.00%
1.8 (1.8.9.3)2010.00%
1.8 (1.8.9.1)2010.00%
1.8 (1.8.8.7)84.00%
1.8 (1.8.8.8)63.00%
1.8 (1.8.7.3)63.00%
1.8 (1.8.6.0)63.00%
1.8 (1.8.9.2)52.50%
1.8 (1.8.9.4)42.00%
1.8 (1.8.8.9)42.00%
1.8 (1.8.2.1)21.00%
1.8 (1.8.5.9)21.00%
1.8 (1.8.8.4)21.00%
1.8 (1.8.5.8)21.00%
Other178.50%

Post.Office (165 servers)

Version Number of Servers Percent
4.2.23521.21%
4.33118.79%
4.1.2.42012.12%
3.5.31710.30%
4.2.1.395.45%
3.9.2.353.03%
4.2.1.153.03%
3.1.242.42%
4.1.142.42%
4.0.142.42%
3.9.231.82%
3.5.131.82%
3.8.7.421.21%
4.1.0.321.21%
3.5.421.21%
4.1.2.321.21%
4.221.21%
3.5.3J21.21%
3.9.1.321.21%
Other116.67%

Gordano Messaging Suite (GMS) (113 servers)

Version Number of Servers Percent
Other113100.00%

GroupWise (100 servers)

Version Number of Servers Percent
14.2.12323.00%
14.2.01111.00%
14.2.21010.00%
6.5.777.00%
7.0.377.00%
14.0.177.00%
14.0.055.00%
14.0.244.00%
7.0.233.00%
8.0.333.00%
7.0.433.00%
12.0.422.00%
6.0.422.00%
12.0.122.00%
8.0.222.00%
6.5.411.00%
12.0.211.00%
6.0.211.00%
7.0.111.00%
6.5.211.00%
8.0.111.00%
8.0.011.00%
6.0.311.00%
6.5.511.00%
Other00.00%

Trend Micro (68 servers)

Version Number of Servers Percent
5.72232.35%
5.181319.12%
5.51217.65%
7.0811.76%
7.557.35%
7.122.94%
3.5322.94%
8.511.47%
7.5ready11.47%
9.011.47%
811.47%
Other00.00%

VisNetic (30 servers)

Version Number of Servers Percent
9.3.2.01033.33%
5.8.6.6310.00%
5.0.2.326.67%
6.2.2.026.67%
5.5.8.326.67%
5.3.5.026.67%
8.0.313.33%
9.1.4.013.33%
8.5.0.513.33%
7.6.1.013.33%
9.1.4.113.33%
8.0.3.113.33%
5.0.2.013.33%
9.1.4.1 provided by Techfount Systems Pte Ltd13.33%
8.5.0.813.33%
Other00.00%

InterScan VirusWall (27 servers)

Version Number of Servers Percent
Other27100.00%

Mirapoint (18 servers)

Version Number of Servers Percent
4.4.3-GA422.22%
4.4.2a-FCS316.67%
4.3.5-GA316.67%
4.4.7-GA211.11%
4.1.9-GA15.56%
4.4.4-GA15.56%
4.3.6-GA15.56%
3.10.10a-GA15.56%
4.4.5-GA15.56%
4.4.6-GA15.56%
Other00.00%

OpenVMS (16 servers)

Version Number of Servers Percent
8.4743.75%
7.3531.25%
8.3318.75%
8.216.25%
Other00.00%

Mercury (9 servers)

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

ModusMail (7 servers)

Version Number of Servers Percent
4.35.477.0571.43%
4.1.361.21114.29%
4.35.477.8114.29%
Other00.00%

WebSTAR V (7 servers)

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

Interscan (6 servers)

Version Number of Servers Percent
3.81-Build_1022233.33%
3.81-Build_1084116.67%
3.5 (build 1294)116.67%
3.8-Build_3013116.67%
3.8-Build_1080116.67%
Other00.00%

MessageWall (5 servers)

Version Number of Servers Percent
1.0.85100.00%
Other00.00%

Neon Mail Server (4 servers)

Version Number of Servers Percent
3.1.0250.00%
3.1.3125.00%
3.0.7125.00%
Other00.00%

WebSTAR (1 servers)

Version Number of Servers Percent
Other1100.00%

MAILsweeper (1 servers)

Version Number of Servers Percent
4.3.20.01100.00%
Other00.00%




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