The survey named "0801" started on 20071219. That survey scanned 0801.total.ips missing IP addresses, of which 0801.total.probes were probed. Of those results, the software was able to identify the server software in 0801.total.parsed cases. It is possible that there is newer data than that, but because of first publication requirements of academic journals it is subjected to a blackout. Once the publication requirement has been met it will be released.

Here is a graphical representation of the relative popularity of the top five SMTP server implementations in the most recent round of the survey:

 
Complete list of results for this survey (0801):
Sendmail333006
magic smtpd315870
Microsoft Exchange302276
Exim300584
Anonymous231338
Postfix183880
Obscured by a Cisco Pix firewall41173
MailEnable37843
Barracuda19907
FSV-MTA9424
Merak8879
WinWebMail7383
Lotus Domino6168
(E) ESMTP5215
ArGoSoft5197
Symantec Mail Security4533
XMail4231
CommuniGate3931
Kerio3604
SonicWALL3454
InterScan3329
MailMarshal2852
Winmail2846
GroupWise2711
DSMTP2650
SMTP AnalogX Proxy2369
honeyd2308
IceWarp2287
spamd2273
Mail Server X12260
SurgeSMTP2121
Spartacus2075
XWall2033
Modus2018
CMailServer1776
IronMail CipherTrust SMTP Proxy1724
MailSite1604
JAMES1229
InterWorx-CP1163
F-Secure1083
Ability Mail1032
RaidenMAILD1022
qpsmtpd981
WebEasyMail939
Eudora916
eSafe849
doorforward.net845
Mailmax828
Scalix750
Post.Office744
NetBox730
WebShield725
StrongMail719
SCM Appliance671
DeskNow667
ISVW644
VisNetic.MailServer644
DvISE PostMan635
SMTPverST609
EIMS X580
MERCUR572
Cheerful (local designation)566
Mirapoint549
MailFoundry541
CheckPoint522
SpamFilterISP513
Matrix SMTP512
PowerMTA511
clamav or proxsmtp507
UserGate449
quarkmail382
FirstClass373
Softmail353
Lyris348
NTMail343
Priamos Managed ESMTP341
MIMEsweeper340
AnNyungSMTP332
XM Server319
PostMaster315
QHMail308
Spamsniper308
Sun308
WorkgroupMail300
VPOP3293
Traffic Inspector SMTP289
Power SMTP287
Mailtraq278
SMTPProxy277
OopsSMTP269
Axigen266
SmartFilter260
CCProxy241
VOPmail223
Sophos221
cqgreylist214
SLmail211
NEP210
iPlanet205
mxl203
Neon Mail Server202
TABS Mail Server for Windows201
PMailServer190
GWGuardian181
SurfControl177
VisNetic174
Aerofox Mail Server171
WBlock.pss164
Mercury/32148
Stalker137
PMDF134
MuseMail133
Coremail132
ExpressMail129
EIMS129
NetStation124
MailNow!122
eXtremail122
EmailArchitect120
Pioneer10117
ecelerity115
QuickMail113
EQManager105
Extreme Email Engine102
G-Mail.Net101
HicomMail100
LSMTP95
zWMS94
MAILsweeper91
Radish91
AppleMailServer83
MessageWall82
FOLIO Messaging Router79
zMail75
Yzsoft72
Softalk72
smtpf63
Alligate61
Spanel59
MagicMail58
Serv-U58
MikroTik56
Proxy+55
Wiz9854
MessageSoft53
Ocean Mail Server51
Yahoo50
Smoothwall50
Winconnection49
RS46
Intermind ESMTP Mail Server45
Southweb44
Terrace Internet Messaging43
spambreaker43
TrusMail40
SpamSubtract39
Rainbow Mail Server38
BlackJumboDog38
iMate34
deepsmtpd.ps32
BluePex Internet Express32
IDCmail31
MailShield31
DBMailServer29
TUNIX28
CrediShield27
MailHub26
Umail-TX26
CleanSpam Enterprise26
Ymailserver25
Courier Mail Server22
sensmail21
Tmail21
EricDaughertys Java SMTP Server21
Microsoft FTP Service20
WorldMail19
CleanMail19
CSmail19
Red Flag18
matriXscan17
TurnKey17
LiteMail16
MailControl15
SpearMail15
SuperMail15
AT-Mail14
ENTMAIL14
iMessager13
ImageReceiver11
Super Mail Server11
VernalMail10
IPXCESS10
eMail Sentinel9
Xerox Messaging8
Cineca8
Mailguard7
IndiSMTP7
WebBoard6
SubEthaSMTP6
onChange5
CHCS MailMan5
Super Mail5
BlitzServ5
FTGate4
XEMS4
Mitra3
MXGuardian3
Realtime Mail Server3
Kirium Mail Server2
UniBi2
JAXA/MAIL2
XSPAM.INFO2
City SMTP Listener2
scm-antispam1
AceEmail1
Sinorail Webmail1
CityMail1
DynaPro1
Ohsunghq1
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