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You are viewing an outdated report.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


    
Mail (MX) Server Survey
June 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 Queried1,870,063   100.0%
Number of Servers that didn't respond324,26617.34%
    Server didn't open socket315,37816.86%
    Server didn't provide banner8,8880.48%
Server provided banner1,545,79782.66%
Server banner identifies software in use956,20351.13%

As indicated by the above table, of the 1,870,063 servers queried, only 956,203 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
Exim544,91056.99%
Postfix324,70433.96%
Sendmail40,8664.27%
MailEnable21,1622.21%
MDaemon9,6451.01%
Microsoft6,9760.73%
IMail1,7740.19%
CommuniGate Pro1,5200.16%
XMail9300.10%
Lotus Domino7220.08%
WinWebMail7020.07%
SurgeSMTP5350.06%
Qmail Toaster4260.04%
Kerio3620.04%
Merak2290.02%
ArGoSoft1580.02%
MagicMail1580.02%
Post.Office1280.01%
GroupWise760.01%
Gordano Messaging Suite (GMS)670.01%
Trend Micro620.01%
InterScan VirusWall240.00%
VisNetic190.00%
OpenVMS120.00%
Mirapoint90.00%
Interscan60.00%
Mercury60.00%
Neon Mail Server50.00%
WebSTAR V40.00%
MessageWall30.00%
WebSTAR20.00%
ModusMail10.00%

Detailed Breakdown of Revisions on a Per-Server Basis

Exim (544,910 servers)

Version Number of Servers Percent
4.89386,11970.86%
4.9049,2969.05%
4.8739,5597.26%
4.8415,4462.83%
4.917,4801.37%
4.806,4071.18%
4.865,8891.08%
Other34,7146.37%

Postfix (324,704 servers)

Version Number of Servers Percent
Other324,704100.00%

Sendmail (40,866 servers)

Version Number of Servers Percent
8.14.511,59728.38%
8.14.49,22622.58%
8.13.85,63613.79%
8.13.13,5888.78%
8.15.22,9477.21%
8.14.72,1475.25%
8.14.31,4643.58%
8.14.91,2132.97%
Other3,0487.46%

MailEnable (21,162 servers)

Version Number of Servers Percent
9.00--2,63212.44%
9.16--2,29210.83%
8.60--8824.17%
8.53--7823.70%
6.5--6262.96%
10.12--6042.85%
8.51--5442.57%
1.986--3851.82%
8.04--3851.82%
8.60-8.60-3721.76%
9.75--3611.71%
10.14--2951.39%
8.50--2561.21%
10.15--2321.10%
5.10--2321.10%
Other10,28248.59%

MDaemon (9,645 servers)

Version Number of Servers Percent
18.0.06857.10%
13.5.15295.48%
16.5.24564.73%
13.6.34474.63%
17.5.24404.56%
13.0.43974.12%
11.0.03914.05%
17.5.33884.02%
13.0.53874.01%
11.0.33843.98%
16.0.42182.26%
12.5.62102.18%
12.5.42072.15%
17.5.12002.07%
14.5.21791.86%
15.0.31671.73%
16.5.11581.64%
10.1.21481.53%
10.0.01461.51%
17.0.21431.48%
16.0.11091.13%
10.1.01071.11%
10.1.11031.07%
13.0.21021.06%
Other2,94430.52%

Microsoft (6,976 servers)

Version Number of Servers Percent
6.0.3790.46753,78954.31%
7.5.7601.1751491713.15%
8.5.9600.1638473710.56%
6.0.3790.39594546.51%
8.0.9200.163841812.59%
5.0.2195.53291502.15%
10.0.14393.01291.85%
7.0.6002.182641161.66%
6.0.3790.18301121.61%
Other3915.60%

IMail (1,774 servers)

Version Number of Servers Percent
12.5.6.10122612.74%
8.2219110.77%
12.5.5.11518310.32%
12.4.1.151568.79%
9.231176.60%
12.5.3.93945.30%
12.5.4.146925.19%
12.3.0.100895.02%
8.15804.51%
8.05563.16%
11.03532.99%
11.5382.14%
7.07251.41%
12.5.5.117251.41%
7.15231.30%
12.5.1.60221.24%
10.02211.18%
10.01191.07%
Other26414.88%

CommuniGate Pro (1,520 servers)

Version Number of Servers Percent
6.1.16.593.88%
6.1.18442.89%
6.1.16382.50%
6.1.18.372.43%
6.2.1352.30%
5.4.11332.17%
5.3.13.332.17%
6.0.11.312.04%
6.1.11291.91%
6.1.10281.84%
6.2.3.261.71%
5.4.11.261.71%
6.0.11231.51%
5.2.20231.51%
5.1.16.221.45%
6.2.2211.38%
5.2.20.211.38%
6.2.2.201.32%
6.2.0191.25%
6.1.11.191.25%
5.0.14.181.18%
6.0.9.181.18%
6.1.19.171.12%
6.2171.12%
6.0.9171.12%
6.1.15.171.12%
5.2.3171.12%
6.1.2.171.12%
5.1.16161.05%
Other77951.25%

XMail (930 servers)

Version Number of Servers Percent
1.2741444.52%
1.2229731.94%
1.25667.10%
1.26626.67%
1.24353.76%
1.21171.83%
1.23101.08%
Other293.12%

Lotus Domino (722 servers)

Version Number of Servers Percent
8.5.3FP613618.84%
8.5.310314.27%
8.5.2334.57%
7.0.2273.74%
8.5263.60%
8.5.1243.32%
8.5.3FP4192.63%
8.5.3FP2192.63%
7.0.3192.63%
8.5.3FP3172.35%
8.5.3FP1172.35%
8.5.2FP4172.35%
8.5.2FP3141.94%
8.5.2FP2131.80%
7.0131.80%
8.0.1131.80%
8.0121.66%
6.5101.39%
6.5.191.25%
8.5.1FP591.25%
7.0.191.25%
8.5.3FP591.25%
7.0.491.25%
8.0.281.11%
6.5.581.11%
Other12917.87%

WinWebMail (702 servers)

Version Number of Servers Percent
3.9.0.715622.22%
3.8.1.39713.82%
3.9.0.1517.26%
4.0.0.1436.13%
3.8.0.1415.84%
3.7.6.1314.42%
3.8.1.5283.99%
3.9.5.3223.13%
3.8.1.1212.99%
3.8.5.1202.85%
3.9.3.1182.56%
3.7.3.1182.56%
3.8.6.1172.42%
4.1.0.1152.14%
3.7.7.3152.14%
3.9.2.1141.99%
3.8.3.1141.99%
3.9.5.1131.85%
3.8.2.1121.71%
3.7.1.1111.57%
Other456.41%

SurgeSMTP (535 servers)

Version Number of Servers Percent
7.3e2-218334.21%
7.1e-1458.41%
6.5a2-2305.61%
7.2i-1275.05%
6.7c-1244.49%
7.2a-1244.49%
6.9c-1173.18%
7.0c2-2162.99%
7.2e-2142.62%
7.3c3-3142.62%
6.5a-1122.24%
3.9e-1122.24%
5.2a-1112.06%
7.3g-1101.87%
7.3h-691.68%
6.1c-181.50%
6.4a-181.50%
4.0u4-471.31%
Other6411.96%

Qmail Toaster (426 servers)

Version Number of Servers Percent
1.331674.18%
1.038720.42%
1.281.88%
1.03.571.64%
1.03.651.17%
Other30.70%

Kerio (362 servers)

Version Number of Servers Percent
6.7.37019.34%
6.7.05114.09%
6.5.23810.50%
6.6.2349.39%
6.7.2298.01%
6.5.0184.97%
6.6.1184.97%
6.4.1174.70%
6.7.1154.14%
6.3.1123.31%
6.4.0102.76%
6.5.171.93%
6.6.061.66%
6.3.061.66%
6.4.251.38%
6.1.341.10%
5.7.941.10%
Other184.97%

Merak (229 servers)

Version Number of Servers Percent
8.0.36628.82%
8.9.14419.21%
8.5.0166.99%
7.5.2125.24%
7.6.1125.24%
7.4.5114.80%
8.3.8104.37%
7.6.483.49%
9.0.362.62%
7.2.041.75%
6.0.831.31%
7.0.131.31%
7.4.231.31%
4.2.131.31%
7.6.031.31%
Other2510.92%

ArGoSoft (158 servers)

Version Number of Servers Percent
1.8 (1.8.9.6)5836.71%
1.8 (1.8.9.3)2113.29%
1.8 (1.8.9.5)1710.76%
1.8 (1.8.9.1)159.49%
1.8 (1.8.7.3)53.16%
1.8 (1.8.9.2)53.16%
1.8 (1.8.8.8)53.16%
1.8 (1.8.8.9)42.53%
1.8 (1.8.6.0)31.90%
1.8 (1.8.8.7)31.90%
1.8 (1.8.2.1)21.27%
1.8 (1.8.7.6)21.27%
1.8 (1.8.5.8)21.27%
1.8 (1.8.9.4)21.27%
1.8 (1.8.8.4)21.27%
Other127.59%

MagicMail (158 servers)

Version Number of Servers Percent
Other158100.00%

Post.Office (128 servers)

Version Number of Servers Percent
4.33124.22%
4.2.22721.09%
4.1.2.41310.16%
3.5.3129.38%
4.2.1.397.03%
4.432.34%
3.1.232.34%
3.5.3J32.34%
4.2.1.132.34%
4.1.132.34%
3.9.2.332.34%
3.5.121.56%
4.1.0.321.56%
3.8.7.421.56%
Other129.38%

GroupWise (76 servers)

Version Number of Servers Percent
14.2.21925.00%
18.0.179.21%
14.2.179.21%
6.5.779.21%
14.2.067.89%
14.0.145.26%
14.2.333.95%
18.0.033.95%
6.0.222.63%
8.0.322.63%
7.0.322.63%
6.0.422.63%
14.0.011.32%
7.0.411.32%
8.0.211.32%
14.0.211.32%
6.5.511.32%
8.0.111.32%
7.0.111.32%
12.0.111.32%
6.0.311.32%
6.5.011.32%
7.0.211.32%
12.0.211.32%
Other00.00%

Gordano Messaging Suite (GMS) (67 servers)

Version Number of Servers Percent
Other67100.00%

Trend Micro (62 servers)

Version Number of Servers Percent
5.72133.87%
5.181219.35%
5.51016.13%
7.0812.90%
7.558.06%
3.5323.23%
7.111.61%
8.511.61%
811.61%
9.011.61%
Other00.00%

InterScan VirusWall (24 servers)

Version Number of Servers Percent
Other24100.00%

VisNetic (19 servers)

Version Number of Servers Percent
9.3.2.0736.84%
5.5.8.3210.53%
5.0.2.3210.53%
5.8.6.6210.53%
6.2.2.015.26%
8.0.315.26%
9.1.4.015.26%
8.0.3.115.26%
5.0.2.015.26%
8.5.0.815.26%
Other00.00%

OpenVMS (12 servers)

Version Number of Servers Percent
7.3758.33%
8.4433.33%
8.218.33%
Other00.00%

Mirapoint (9 servers)

Version Number of Servers Percent
4.4.2a-FCS222.22%
4.3.5-GA222.22%
4.4.3-GA222.22%
3.10.10a-GA111.11%
4.4.3a-GA111.11%
4.4.6-GA111.11%
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%

Mercury (6 servers)

Version Number of Servers Percent
3.32466.67%
1.48233.33%
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 (4 servers)

Version Number of Servers Percent
5.4.1375.00%
5.3.4125.00%
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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