Started SMTP (Simple Mail Transfer Protocol) is not running his own right, but it must at first turn, so that the SMTP to work properly.
SMTP is specified for outgoing mail transport and uses TCP port 25.
SMTP services OFF
In Merak Mail Server Service Administration There are a few services, Among them are: SMTP, POP3, IMAP, Instant Messaging, GroupWave, Web / Control, LDAP
SMTP Services are in turn
right-click and then start to turn on the SMTP service
IceWarp Merak Mail Server Services
SMTP Services ON