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You are viewing an outdated report.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


    
Mail (MX) Server Survey
October 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 Queried1,982,169   100.0%
Number of Servers that didn't respond360,88318.21%
    Server didn't open socket351,61317.74%
    Server didn't provide banner9,2700.47%
Server provided banner1,621,28681.79%
Server banner identifies software in use998,89250.39%

As indicated by the above table, of the 1,982,169 servers queried, only 998,892 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
Exim565,74956.64%
Postfix335,18133.56%
Sendmail46,6494.67%
MailEnable22,4892.25%
MDaemon10,9361.09%
Microsoft8,8710.89%
IMail1,9920.20%
CommuniGate Pro1,7170.17%
XMail1,0080.10%
WinWebMail9630.10%
Lotus Domino9210.09%
SurgeSMTP5770.06%
Qmail Toaster4870.05%
Kerio4140.04%
Merak2670.03%
ArGoSoft1810.02%
Post.Office1500.02%
Gordano Messaging Suite (GMS)890.01%
GroupWise790.01%
Trend Micro640.01%
InterScan VirusWall280.00%
VisNetic250.00%
Mirapoint140.00%
OpenVMS110.00%
Mercury90.00%
WebSTAR V60.00%
Interscan60.00%
Neon Mail Server40.00%
MessageWall40.00%
WebSTAR10.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (565,749 servers)

Version Number of Servers Percent
4.89307,62154.37%
4.87157,66427.87%
4.8821,6513.83%
4.8417,6923.13%
4.8010,3981.84%
4.867,5471.33%
4.857,3881.31%
4.726,8841.22%
4.826,4581.14%
4.766,4391.14%
Other16,0072.83%

Postfix (335,181 servers)

Version Number of Servers Percent
Other335,181100.00%

Sendmail (46,649 servers)

Version Number of Servers Percent
8.14.512,02225.77%
8.14.410,65822.85%
8.13.87,28715.62%
8.13.14,5579.77%
8.15.22,8516.11%
8.14.32,1164.54%
8.14.71,8613.99%
8.14.91,3302.85%
Other3,9678.50%

MailEnable (22,489 servers)

Version Number of Servers Percent
9.00--3,06113.61%
9.16--1,4126.28%
8.60--1,1455.09%
8.53--9994.44%
6.5--8323.70%
8.51--6722.99%
1.986--5312.36%
9.75--5032.24%
8.04--4862.16%
8.60-8.60-4131.84%
8.50--3321.48%
5.10--3261.45%
9.74--3231.44%
9.53--2951.31%
8.00--2901.29%
6.0--2261.00%
7.06--2251.00%
Other10,41846.32%

MDaemon (10,936 servers)

Version Number of Servers Percent
17.0.28948.17%
16.5.28107.41%
17.0.36095.57%
13.5.15414.95%
13.6.34494.11%
11.0.04484.10%
11.0.34414.03%
13.0.54243.88%
13.0.44133.78%
16.0.43683.37%
16.5.12642.41%
12.5.62402.19%
12.5.42252.06%
15.0.32161.98%
14.5.21921.76%
17.0.01881.72%
10.0.01711.56%
10.1.21581.44%
15.5.31471.34%
16.0.11381.26%
10.1.11191.09%
10.1.01111.01%
Other3,37030.82%

Microsoft (8,871 servers)

Version Number of Servers Percent
6.0.3790.46755,26659.36%
7.5.7601.175141,10312.43%
8.5.9600.163847408.34%
6.0.3790.39596026.79%
8.0.9200.163841892.13%
5.0.2195.53291621.83%
7.0.6002.182641501.69%
6.0.3790.18301481.67%
5.0.2195.7381911.03%
Other4204.73%

IMail (1,992 servers)

Version Number of Servers Percent
12.5.5.11528914.51%
12.4.1.151748.73%
8.221537.68%
12.5.3.931447.23%
9.231356.78%
12.5.4.1461286.43%
12.5.6.1011155.77%
8.15914.57%
12.3.0.100914.57%
8.05693.46%
11.03562.81%
11.5512.56%
7.07301.51%
12.5.5.117301.51%
12.5.1.60281.41%
7.15271.36%
10.02271.36%
11.02231.15%
10.01211.05%
Other31015.56%

CommuniGate Pro (1,717 servers)

Version Number of Servers Percent
5.1.161327.69%
6.1.16854.95%
6.1.16.754.37%
6.2472.74%
6.1.17462.68%
6.1.11372.15%
5.4.11362.10%
5.2.20362.10%
6.1.10352.04%
6.1.17.321.86%
5.3.13.311.81%
6.0.11.291.69%
5.4.11.271.57%
6.0.11261.51%
6.0.9261.51%
6.1.15.251.46%
6.1.13241.40%
5.2.3211.22%
5.0.14.211.22%
6.0.9.211.22%
5.1.16.211.22%
5.2.20.211.22%
6.1.14201.16%
6.1.2191.11%
6.1.11.191.11%
6.1.12.181.05%
6.1.10.181.05%
Other76944.79%

XMail (1,008 servers)

Version Number of Servers Percent
1.2743142.76%
1.2232632.34%
1.25777.64%
1.26656.45%
1.24393.87%
1.21191.88%
1.23131.29%
Other383.77%

WinWebMail (963 servers)

Version Number of Servers Percent
3.9.0.721522.33%
3.8.1.314014.54%
3.9.0.1646.65%
3.8.0.1616.33%
3.7.6.1586.02%
3.8.1.5444.57%
3.8.1.1373.84%
3.8.5.1353.63%
3.9.2.1333.43%
3.8.6.1323.32%
3.9.3.1313.22%
3.9.5.1293.01%
3.7.3.1282.91%
3.7.7.3262.70%
3.8.2.1191.97%
3.7.1.1171.77%
3.8.3.1171.77%
3.7.0.5111.14%
3.8.3.3101.04%
Other565.82%

Lotus Domino (921 servers)

Version Number of Servers Percent
8.5.3FP617919.44%
8.5.312513.57%
8.5.2404.34%
7.0.2363.91%
8.5.1333.58%
8.5313.37%
8.5.3FP2252.71%
8.5.3FP4242.61%
8.5.2FP4242.61%
8.5.3FP1232.50%
8.5.3FP3212.28%
7.0.3202.17%
8.5.2FP3192.06%
8.5.3FP5171.85%
8.5.2FP2171.85%
8.0.1161.74%
8.0151.63%
7.0.4141.52%
7.0141.52%
8.5.1FP5131.41%
6.5.1131.41%
7.0.3FP1111.19%
6.5111.19%
7.0.1101.09%
6.5.4101.09%
Other16017.37%

SurgeSMTP (577 servers)

Version Number of Servers Percent
7.3c3-39516.46%
7.1e-17513.00%
7.2i-16611.44%
6.5a2-2366.24%
7.2a-1345.89%
7.2e-2315.37%
6.7c-1254.33%
6.9c-1203.47%
6.5a-1172.95%
7.0c2-2162.77%
3.9e-1142.43%
7.3d-5111.91%
5.2a-1111.91%
6.1c-191.56%
4.0u4-491.56%
6.4a-171.21%
3.8k4-471.21%
Other9416.29%

Qmail Toaster (487 servers)

Version Number of Servers Percent
1.339180.29%
1.036914.17%
1.2102.05%
1.03.571.44%
1.03.651.03%
Other51.03%

Kerio (414 servers)

Version Number of Servers Percent
6.7.39422.71%
6.7.05112.32%
6.6.2419.90%
6.5.2399.42%
6.7.2307.25%
6.5.0245.80%
6.6.1184.35%
6.4.1163.86%
6.7.1163.86%
6.3.1143.38%
6.5.1102.42%
6.4.092.17%
6.1.371.69%
6.3.071.69%
6.6.051.21%
6.4.251.21%
Other286.76%

Merak (267 servers)

Version Number of Servers Percent
8.0.37427.72%
8.9.14516.85%
8.5.0248.99%
7.5.2165.99%
8.3.8155.62%
7.4.5145.24%
7.6.1124.49%
7.6.4114.12%
7.4.251.87%
9.0.341.50%
7.2.041.50%
7.0.141.50%
4.2.131.12%
6.0.831.12%
5.9.431.12%
6.1.031.12%
7.6.031.12%
Other248.99%

ArGoSoft (181 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)6737.02%
1.8 (1.8.9.5)2212.15%
1.8 (1.8.9.3)2011.05%
1.8 (1.8.9.1)179.39%
1.8 (1.8.8.7)63.31%
1.8 (1.8.6.0)52.76%
1.8 (1.8.9.2)52.76%
1.8 (1.8.8.8)52.76%
1.8 (1.8.7.3)52.76%
1.8 (1.8.8.9)42.21%
1.8 (1.8.9.4)31.66%
1.8 (1.8.5.8)21.10%
1.8 (1.8.2.1)21.10%
1.8 (1.8.8.4)21.10%
1.8 (1.8.7.6)21.10%
Other147.73%

Post.Office (150 servers)

Version Number of Servers Percent
4.2.23120.67%
4.32919.33%
4.1.2.41912.67%
3.5.3149.33%
4.2.1.374.67%
4.2.1.153.33%
3.9.2.353.33%
3.1.242.67%
3.5.132.00%
3.9.232.00%
4.1.132.00%
4.0.132.00%
4.221.33%
3.5.3J21.33%
3.8.7.421.33%
4.1.0.321.33%
4.1.2.321.33%
3.9.1.321.33%
3.5.421.33%
Other106.67%

Gordano Messaging Suite (GMS) (89 servers)

Version Number of Servers Percent
Other89100.00%

GroupWise (79 servers)

Version Number of Servers Percent
14.2.21924.05%
14.2.11113.92%
14.0.167.59%
6.5.767.59%
14.2.056.33%
14.0.045.06%
7.0.333.80%
8.0.222.53%
12.0.122.53%
7.0.422.53%
6.0.422.53%
6.0.222.53%
6.5.522.53%
14.0.222.53%
12.0.422.53%
8.0.311.27%
7.0.211.27%
12.0.211.27%
6.5.411.27%
6.5.211.27%
7.0.111.27%
6.5.011.27%
8.0.111.27%
6.0.311.27%
Other00.00%

Trend Micro (64 servers)

Version Number of Servers Percent
5.72031.25%
5.181218.75%
5.51218.75%
7.0812.50%
7.557.81%
3.5323.12%
7.123.12%
9.011.56%
8.511.56%
811.56%
Other00.00%

InterScan VirusWall (28 servers)

Version Number of Servers Percent
Other28100.00%

VisNetic (25 servers)

Version Number of Servers Percent
9.3.2.0832.00%
5.8.6.628.00%
5.5.8.328.00%
5.0.2.328.00%
8.0.3.114.00%
5.3.5.014.00%
8.5.0.814.00%
5.0.2.014.00%
9.1.4.1 provided by Techfount Systems Pte Ltd14.00%
8.5.0.514.00%
6.2.2.014.00%
8.0.314.00%
9.1.4.014.00%
7.6.1.014.00%
9.1.4.114.00%
Other00.00%

Mirapoint (14 servers)

Version Number of Servers Percent
4.4.3-GA428.57%
4.3.5-GA321.43%
4.4.2a-FCS214.29%
4.4.6-GA17.14%
3.7.5a-GA17.14%
4.4.4-GA17.14%
3.10.10a-GA17.14%
4.4.3a-GA17.14%
Other00.00%

OpenVMS (11 servers)

Version Number of Servers Percent
7.3654.55%
8.4327.27%
8.319.09%
8.219.09%
Other00.00%

Mercury (9 servers)

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

WebSTAR V (6 servers)

Version Number of Servers Percent
5.4.1350.00%
5.3.4116.67%
5.4.0116.67%
5.3.2116.67%
Other00.00%

Interscan (6 servers)

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

MessageWall (4 servers)

Version Number of Servers Percent
1.0.84100.00%
Other00.00%

WebSTAR (1 servers)

Version Number of Servers Percent
Other1100.00%




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