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You are viewing an outdated report.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


    
Mail (MX) Server Survey
July 1st, 2018

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 Queried1,864,101   100.0%
Number of Servers that didn't respond340,63218.27%
    Server didn't open socket331,11817.76%
    Server didn't provide banner9,5140.51%
Server provided banner1,523,46981.73%
Server banner identifies software in use942,99250.59%

As indicated by the above table, of the 1,864,101 servers queried, only 942,992 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
Exim538,45757.10%
Postfix319,94833.93%
Sendmail40,2374.27%
MailEnable20,6972.19%
MDaemon9,2550.98%
Microsoft6,6270.70%
IMail1,7480.19%
CommuniGate Pro1,4980.16%
XMail9040.10%
Lotus Domino6970.07%
WinWebMail6780.07%
SurgeSMTP5310.06%
Qmail Toaster4220.04%
Kerio3390.04%
Merak2280.02%
MagicMail1600.02%
ArGoSoft1520.02%
Post.Office1270.01%
GroupWise780.01%
Gordano Messaging Suite (GMS)620.01%
Trend Micro580.01%
InterScan VirusWall220.00%
VisNetic170.00%
OpenVMS120.00%
Mirapoint80.00%
Mercury80.00%
Interscan60.00%
Neon Mail Server50.00%
WebSTAR V50.00%
MessageWall30.00%
WebSTAR20.00%
ModusMail10.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (538,457 servers)

Version Number of Servers Percent
4.91331,14261.50%
4.8998,32718.26%
4.8736,8046.84%
4.9014,4822.69%
4.8414,3462.66%
4.806,1091.13%
4.865,7091.06%
Other31,5385.86%

Postfix (319,948 servers)

Version Number of Servers Percent
Other319,948100.00%

Sendmail (40,237 servers)

Version Number of Servers Percent
8.15.211,27728.03%
8.14.48,72821.69%
8.13.85,47413.60%
8.13.13,4948.68%
8.14.53,4158.49%
8.14.72,1645.38%
8.14.91,6974.22%
8.14.31,0402.58%
Other2,9487.33%

MailEnable (20,697 servers)

Version Number of Servers Percent
9.00--2,41811.68%
9.16--2,0609.95%
10.12--1,3056.31%
8.60--7663.70%
8.53--7393.57%
6.5--5832.82%
8.51--5092.46%
8.60-8.60-3671.77%
8.04--3561.72%
1.986--3491.69%
10.16--3051.47%
9.75--3011.45%
10.14--2631.27%
10.15--2471.19%
8.50--2341.13%
9.00--9.002111.02%
Other9,68446.79%

MDaemon (9,255 servers)

Version Number of Servers Percent
18.0.26246.74%
13.5.15135.54%
13.6.34474.83%
16.5.24234.57%
11.0.03754.05%
13.0.43744.04%
11.0.33643.93%
13.0.53613.90%
18.0.13393.66%
17.5.22692.91%
17.5.32182.36%
12.5.42022.18%
16.0.41922.07%
12.5.61922.07%
18.0.01811.96%
14.5.21741.88%
15.0.31631.76%
10.0.01411.52%
16.5.11391.50%
10.1.21361.47%
17.5.11341.45%
17.0.21281.38%
16.0.11051.13%
13.0.21041.12%
10.1.01021.10%
10.1.1951.03%
Other2,76029.82%

Microsoft (6,627 servers)

Version Number of Servers Percent
6.0.3790.46753,52453.18%
7.5.7601.1751489413.49%
8.5.9600.1638472310.91%
6.0.3790.39594146.25%
8.0.9200.163841792.70%
5.0.2195.53291482.23%
10.0.14393.01422.14%
7.0.6002.182641181.78%
6.0.3790.18301061.60%
5.0.2195.6713711.07%
Other3084.65%

IMail (1,748 servers)

Version Number of Servers Percent
12.5.6.10128416.25%
8.2218210.41%
12.4.1.151568.92%
12.5.5.1151367.78%
9.231186.75%
12.5.3.931005.72%
12.5.4.146905.15%
12.3.0.100854.86%
8.15794.52%
11.03533.03%
8.05522.97%
11.5321.83%
12.5.5.117251.43%
7.07241.37%
10.02211.20%
7.15201.14%
10.01191.09%
Other27215.56%

CommuniGate Pro (1,498 servers)

Version Number of Servers Percent
6.1.16.583.87%
6.1.16392.60%
6.1.18382.54%
6.0.11.332.20%
5.3.13.332.20%
6.1.11322.14%
6.1.18.322.14%
6.2.1312.07%
5.4.11291.94%
5.4.11.261.74%
6.0.11251.67%
6.1.19.241.60%
6.2.5.231.54%
6.2.4221.47%
5.2.20.221.47%
6.1.19211.40%
6.1.10201.34%
6.1.11.201.34%
5.2.20201.34%
6.0.9191.27%
5.1.16191.27%
6.2.0181.20%
5.1.16.171.13%
6.2.3.171.13%
5.2.3171.13%
6.2161.07%
6.2.2161.07%
6.1.2.161.07%
6.0.9.161.07%
Other77952.00%

XMail (904 servers)

Version Number of Servers Percent
1.2740644.91%
1.2228931.97%
1.25647.08%
1.26566.19%
1.24343.76%
1.21171.88%
1.23111.22%
Other272.99%

Lotus Domino (697 servers)

Version Number of Servers Percent
8.5.3FP613719.66%
8.5.310114.49%
8.5.2334.73%
7.0.2284.02%
8.5233.30%
8.5.1223.16%
8.5.3FP2182.58%
8.5.3FP3182.58%
7.0.3172.44%
8.5.3FP4152.15%
8.5.2FP4152.15%
8.5.3FP1142.01%
8.0.1142.01%
8.5.2FP3142.01%
8.0131.87%
8.5.2FP2121.72%
7.0121.72%
6.5101.43%
8.5.1FP591.29%
7.0.191.29%
6.5.481.15%
8.0.281.15%
8.5.3FP581.15%
7.0.481.15%
6.5.571.00%
6.5.171.00%
Other11716.79%

WinWebMail (678 servers)

Version Number of Servers Percent
3.9.0.714821.83%
3.8.1.38913.13%
3.9.0.1517.52%
3.8.0.1426.19%
3.7.6.1345.01%
4.0.0.1304.42%
3.8.1.5273.98%
4.1.0.1223.24%
3.9.5.3202.95%
3.8.1.1202.95%
3.8.5.1192.80%
3.8.6.1172.51%
3.9.3.1162.36%
3.7.3.1162.36%
3.7.7.3152.21%
4.2.0.1152.21%
3.8.2.1131.92%
3.9.2.1121.77%
3.8.3.1111.62%
3.7.1.1101.47%
3.9.5.1101.47%
3.7.5.171.03%
Other345.01%

SurgeSMTP (531 servers)

Version Number of Servers Percent
7.3e2-218434.65%
7.1e-1427.91%
6.5a2-2336.21%
7.2i-1254.71%
6.7c-1234.33%
7.2a-1213.95%
7.0c2-2142.64%
6.9c-1142.64%
7.3i2-2142.64%
7.2e-2142.64%
3.9e-1122.26%
6.5a-1122.26%
7.3c3-3122.26%
5.2a-1101.88%
7.3h-691.69%
6.4a-181.51%
6.1c-181.51%
4.0u4-471.32%
7.3j-461.13%
Other6311.86%

Qmail Toaster (422 servers)

Version Number of Servers Percent
1.331073.46%
1.038921.09%
1.281.90%
1.03.571.66%
1.03.651.18%
Other30.71%

Kerio (339 servers)

Version Number of Servers Percent
6.7.36820.06%
6.7.04814.16%
6.6.23510.32%
6.5.2329.44%
6.7.2257.37%
6.4.1175.01%
6.5.0164.72%
6.6.1164.72%
6.7.1133.83%
6.3.1113.24%
6.4.0113.24%
6.5.172.06%
6.3.061.77%
6.6.051.47%
6.1.341.18%
5.7.941.18%
Other216.19%

Merak (228 servers)

Version Number of Servers Percent
8.0.36930.26%
8.9.14419.30%
8.5.0156.58%
7.4.5114.82%
7.5.2114.82%
7.6.1114.82%
8.3.8104.39%
7.6.473.07%
9.0.362.63%
7.2.041.75%
7.4.241.75%
7.0.131.32%
6.0.831.32%
7.6.031.32%
4.2.131.32%
Other2410.53%

MagicMail (160 servers)

Version Number of Servers Percent
Other160100.00%

ArGoSoft (152 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)5536.18%
1.8 (1.8.9.3)2013.16%
1.8 (1.8.9.5)1912.50%
1.8 (1.8.9.1)1610.53%
1.8 (1.8.8.8)53.29%
1.8 (1.8.8.9)42.63%
1.8 (1.8.7.3)42.63%
1.8 (1.8.6.0)31.97%
1.8 (1.8.8.7)31.97%
1.8 (1.8.9.2)31.97%
1.8 (1.8.8.4)21.32%
1.8 (1.8.7.6)21.32%
1.8 (1.8.5.8)21.32%
1.8 (1.8.9.4)21.32%
1.8 (1.8.2.1)21.32%
Other106.58%

Post.Office (127 servers)

Version Number of Servers Percent
4.33124.41%
4.2.22519.69%
4.1.2.41310.24%
3.5.3118.66%
4.2.1.397.09%
4.453.94%
3.1.232.36%
3.5.3J32.36%
3.5.132.36%
4.2.1.132.36%
4.1.132.36%
3.9.2.332.36%
3.8.7.421.57%
Other1310.24%

GroupWise (78 servers)

Version Number of Servers Percent
14.2.21721.79%
18.0.1911.54%
14.2.078.97%
14.2.167.69%
18.0.056.41%
6.5.756.41%
14.2.356.41%
14.0.145.13%
7.0.333.85%
8.0.322.56%
6.0.222.56%
6.0.422.56%
7.0.211.28%
6.5.011.28%
6.0.311.28%
6.5.511.28%
12.0.111.28%
7.0.111.28%
8.0.111.28%
14.0.011.28%
8.0.211.28%
14.0.211.28%
7.0.411.28%
Other00.00%

Gordano Messaging Suite (GMS) (62 servers)

Version Number of Servers Percent
Other62100.00%

Trend Micro (58 servers)

Version Number of Servers Percent
5.72034.48%
5.181220.69%
5.5813.79%
7.0712.07%
7.558.62%
3.5323.45%
7.111.72%
8.511.72%
811.72%
9.011.72%
Other00.00%

InterScan VirusWall (22 servers)

Version Number of Servers Percent
Other22100.00%

VisNetic (17 servers)

Version Number of Servers Percent
9.3.2.0635.29%
5.5.8.3211.76%
5.0.2.3211.76%
6.2.2.015.88%
8.0.315.88%
5.8.6.615.88%
9.1.4.015.88%
8.0.3.115.88%
5.0.2.015.88%
8.5.0.815.88%
Other00.00%

OpenVMS (12 servers)

Version Number of Servers Percent
7.3650.00%
8.4433.33%
8.318.33%
8.218.33%
Other00.00%

Mirapoint (8 servers)

Version Number of Servers Percent
4.4.2a-FCS225.00%
4.3.5-GA225.00%
4.4.3-GA225.00%
3.10.10a-GA112.50%
4.4.6-GA112.50%
Other00.00%

Mercury (8 servers)

Version Number of Servers Percent
3.32450.00%
1.48337.50%
3.21112.50%
Other00.00%

Interscan (6 servers)

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

Neon Mail Server (5 servers)

Version Number of Servers Percent
3.1.3120.00%
3.0.7120.00%
3.1.0120.00%
3.1.5120.00%
3.1.2120.00%
Other00.00%

WebSTAR V (5 servers)

Version Number of Servers Percent
5.4.1480.00%
5.3.4120.00%
Other00.00%

MessageWall (3 servers)

Version Number of Servers Percent
1.0.83100.00%
Other00.00%

WebSTAR (2 servers)

Version Number of Servers Percent
Other2100.00%

ModusMail (1 servers)

Version Number of Servers Percent
4.1.361.211100.00%
Other00.00%




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