Apache JamesW
Apache James
EximW
Exim
Halon (software)W
Halon (software)
HMailServerW
HMailServer
Hula (software)W
Hula (software)
IceWarp Mail ServerW
IceWarp Mail Server
Internet Information ServicesW
Internet Information Services
Lotus FoundationsW
Lotus Foundations
OpenSMTPDW
OpenSMTPD
Postfix (software)W
Postfix (software)
SendmailW
Sendmail
ZMailerW
ZMailer