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You are viewing an outdated report.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
September 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 Queried2,010,308   100.0%
Number of Servers that didn't respond360,59117.94%
    Server didn't open socket351,09417.46%
    Server didn't provide banner9,4970.47%
Server provided banner1,649,71782.06%
Server banner identifies software in use1,013,10450.40%

As indicated by the above table, of the 2,010,308 servers queried, only 1,013,104 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
Exim572,68456.53%
Postfix339,75233.54%
Sendmail47,4784.69%
MailEnable23,0072.27%
MDaemon11,5071.14%
Microsoft9,3510.92%
IMail2,0860.21%
CommuniGate Pro1,7930.18%
XMail1,0310.10%
WinWebMail1,0080.10%
Lotus Domino9570.09%
SurgeSMTP5920.06%
Qmail Toaster4640.05%
Kerio4370.04%
Merak2800.03%
ArGoSoft1880.02%
Post.Office1540.02%
Gordano Messaging Suite (GMS)840.01%
GroupWise780.01%
Trend Micro630.01%
InterScan VirusWall280.00%
VisNetic250.00%
Mirapoint140.00%
OpenVMS100.00%
Mercury90.00%
MessageWall60.00%
WebSTAR V60.00%
Interscan60.00%
Neon Mail Server40.00%
ModusMail10.00%
WebSTAR10.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (572,684 servers)

Version Number of Servers Percent
4.89301,13652.58%
4.87166,82529.13%
4.8822,2683.89%
4.8418,6823.26%
4.8010,7191.87%
4.867,9251.38%
4.857,5781.32%
4.727,1961.26%
4.826,9041.21%
4.766,6841.17%
Other16,7672.93%

Postfix (339,752 servers)

Version Number of Servers Percent
Other339,752100.00%

Sendmail (47,478 servers)

Version Number of Servers Percent
8.14.512,15025.59%
8.14.411,04023.25%
8.13.87,58115.97%
8.13.14,75010.00%
8.15.22,5785.43%
8.14.32,2244.68%
8.14.71,7253.63%
8.14.91,3512.85%
8.14.24761.00%
Other3,6037.59%

MailEnable (23,007 servers)

Version Number of Servers Percent
9.00--3,13513.63%
9.16--1,3275.77%
8.60--1,2185.29%
8.53--1,0494.56%
6.5--8753.80%
8.51--6852.98%
1.986--5792.52%
8.04--5012.18%
9.75--4551.98%
8.60-8.60-4231.84%
9.74--3541.54%
5.10--3381.47%
8.50--3371.46%
9.75--9.753141.36%
9.53--3131.36%
8.00--3061.33%
7.06--2371.03%
6.0--2331.01%
Other10,32844.89%

MDaemon (11,507 servers)

Version Number of Servers Percent
17.0.21,36311.84%
16.5.29458.21%
13.5.15654.91%
11.0.04864.22%
11.0.34583.98%
13.0.44523.93%
13.0.54503.91%
13.6.34293.73%
16.0.44033.50%
16.5.13002.61%
12.5.62562.22%
17.0.02382.07%
12.5.42312.01%
15.0.32312.01%
14.5.22011.75%
10.0.01821.58%
10.1.21691.47%
15.5.31651.43%
16.0.11511.31%
10.1.11271.10%
10.1.01161.01%
Other3,58931.19%

Microsoft (9,351 servers)

Version Number of Servers Percent
6.0.3790.46755,59159.79%
7.5.7601.175141,12612.04%
8.5.9600.163847688.21%
6.0.3790.39596567.02%
8.0.9200.163841892.02%
5.0.2195.53291721.84%
6.0.3790.18301601.71%
7.0.6002.182641581.69%
5.0.2195.73811011.08%
Other4304.60%

IMail (2,086 servers)

Version Number of Servers Percent
12.5.5.11537317.88%
12.4.1.151758.39%
8.221537.33%
12.5.3.931527.29%
9.231386.62%
12.5.4.1461316.28%
8.15964.60%
12.3.0.100954.55%
8.05693.31%
12.5.6.101673.21%
11.03582.78%
11.5542.59%
7.07321.53%
12.5.1.60301.44%
10.02271.29%
7.15271.29%
12.5.5.117261.25%
11.02231.10%
10.01221.05%
Other33816.20%

CommuniGate Pro (1,793 servers)

Version Number of Servers Percent
5.1.161337.42%
6.1.161146.36%
6.1.16.1025.69%
6.2442.45%
6.1.11402.23%
6.1.10351.95%
5.4.11.341.90%
5.3.13.331.84%
5.4.11311.73%
5.2.20311.73%
6.0.11291.62%
6.0.11.281.56%
6.1.10.271.51%
6.1.13271.51%
6.1.11.271.51%
5.2.20.261.45%
6.1.15.251.39%
6.1.2.241.34%
5.0.14.231.28%
5.2.3231.28%
5.1.16.231.28%
6.0.9231.28%
6.0.9.221.23%
6.1.12221.23%
6.1.15211.17%
6.1.13.191.06%
6.1.2191.06%
6.1.14.191.06%
6.1.12.181.00%
6.1.14181.00%
6.0.10.181.00%
Other71539.88%

XMail (1,031 servers)

Version Number of Servers Percent
1.2744142.77%
1.2233532.49%
1.25797.66%
1.26686.60%
1.24383.69%
1.21212.04%
1.23141.36%
Other353.39%

WinWebMail (1,008 servers)

Version Number of Servers Percent
3.9.0.722522.32%
3.8.1.314214.09%
3.9.0.1706.94%
3.7.6.1656.45%
3.8.0.1616.05%
3.8.1.5494.86%
3.8.1.1373.67%
3.8.5.1363.57%
3.9.3.1363.57%
3.9.2.1363.57%
3.8.6.1353.47%
3.7.3.1333.27%
3.7.7.3282.78%
3.8.2.1232.28%
3.7.1.1191.88%
3.9.5.1161.59%
3.8.3.1161.59%
3.7.0.5111.09%
Other706.94%

Lotus Domino (957 servers)

Version Number of Servers Percent
8.5.3FP618219.02%
8.5.312613.17%
8.5.2434.49%
8.5363.76%
7.0.2363.76%
8.5.1363.76%
8.5.3FP2272.82%
8.5.2FP4262.72%
8.5.3FP3242.51%
8.5.3FP1242.51%
8.5.3FP4222.30%
7.0.3212.19%
8.5.2FP3191.99%
8.5.2FP2181.88%
8.0171.78%
8.5.3FP5171.78%
8.0.1161.67%
7.0.4151.57%
8.5.1FP5151.57%
7.0141.46%
7.0.1131.36%
6.5.1131.36%
7.0.3FP1111.15%
6.5111.15%
Other17518.29%

SurgeSMTP (592 servers)

Version Number of Servers Percent
7.2i-18814.86%
7.1e-18213.85%
7.3c3-36611.15%
6.5a2-2355.91%
7.2a-1345.74%
7.2e-2335.57%
6.7c-1264.39%
6.9c-1244.05%
6.5a-1203.38%
7.0c2-2183.04%
3.9e-1152.53%
5.2a-1132.20%
7.3d-5111.86%
6.4a-191.52%
6.1c-191.52%
4.0u4-481.35%
7.3d-471.18%
3.8k4-471.18%
Other8714.70%

Qmail Toaster (464 servers)

Version Number of Servers Percent
1.337580.82%
1.036313.58%
1.2112.37%
1.03.571.51%
Other81.72%

Kerio (437 servers)

Version Number of Servers Percent
6.7.39621.97%
6.7.05011.44%
6.5.2439.84%
6.6.2429.61%
6.7.2296.64%
6.5.0265.95%
6.6.1184.12%
6.4.1173.89%
6.7.1173.89%
6.3.1153.43%
6.5.1122.75%
6.3.0112.52%
6.4.0102.29%
6.1.381.83%
6.6.071.60%
6.4.251.14%
Other317.09%

Merak (280 servers)

Version Number of Servers Percent
8.0.38128.93%
8.9.14917.50%
8.5.0248.57%
7.5.2165.71%
7.4.5155.36%
8.3.8145.00%
7.6.1124.29%
7.6.493.21%
7.0.151.79%
7.4.251.79%
6.1.041.43%
7.2.041.43%
9.0.341.43%
6.0.831.07%
4.2.131.07%
5.9.431.07%
Other2910.36%

ArGoSoft (188 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)6836.17%
1.8 (1.8.9.5)2211.70%
1.8 (1.8.9.3)2111.17%
1.8 (1.8.9.1)2010.64%
1.8 (1.8.7.3)63.19%
1.8 (1.8.8.7)63.19%
1.8 (1.8.8.8)52.66%
1.8 (1.8.9.2)52.66%
1.8 (1.8.6.0)52.66%
1.8 (1.8.8.9)42.13%
1.8 (1.8.9.4)21.06%
1.8 (1.8.7.6)21.06%
1.8 (1.8.5.9)21.06%
1.8 (1.8.5.8)21.06%
1.8 (1.8.2.1)21.06%
1.8 (1.8.8.4)21.06%
Other147.45%

Post.Office (154 servers)

Version Number of Servers Percent
4.33019.48%
4.2.23019.48%
4.1.2.42012.99%
3.5.31610.39%
4.2.1.385.19%
4.2.1.153.25%
3.9.2.353.25%
3.1.242.60%
3.9.231.95%
4.1.131.95%
3.5.131.95%
4.1.2.321.30%
3.5.3J21.30%
3.9.1.321.30%
3.5.421.30%
4.0.121.30%
3.8.7.421.30%
4.1.0.321.30%
4.221.30%
Other117.14%

Gordano Messaging Suite (GMS) (84 servers)

Version Number of Servers Percent
Other84100.00%

GroupWise (78 servers)

Version Number of Servers Percent
14.2.21721.79%
14.2.11215.38%
6.5.778.97%
14.0.167.69%
14.2.067.69%
14.0.045.13%
7.0.333.85%
7.0.433.85%
6.0.422.56%
12.0.122.56%
8.0.322.56%
12.0.422.56%
14.0.222.56%
6.5.211.28%
12.0.211.28%
6.0.211.28%
8.0.211.28%
7.0.111.28%
6.5.011.28%
6.0.311.28%
6.5.511.28%
7.0.211.28%
8.0.111.28%
Other00.00%

Trend Micro (63 servers)

Version Number of Servers Percent
5.72031.75%
5.181320.63%
5.51117.46%
7.0812.70%
7.557.94%
3.5323.17%
7.123.17%
811.59%
8.511.59%
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-GA321.43%
4.3.5-GA321.43%
4.4.2a-FCS321.43%
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 (10 servers)

Version Number of Servers Percent
7.3660.00%
8.4330.00%
8.2110.00%
Other00.00%

Mercury (9 servers)

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

MessageWall (6 servers)

Version Number of Servers Percent
1.0.86100.00%
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%
3.1.3125.00%
3.0.7125.00%
Other00.00%

ModusMail (1 servers)

Version Number of Servers Percent
4.1.361.211100.00%
Other00.00%

WebSTAR (1 servers)

Version Number of Servers Percent
Other1100.00%




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