Using Sendmail on MPE - April 2003

Using Sendmail on MPE - Solution Symposium West Page 46April 24, 2003
sending e-mail – how it
works (server)
1. JDAEMON processes
/var/spool/clientmqueue once
at startup to handle any
messages submitted while
JDAEMON wasn’t running
2. new messages are read from
port 25 using SMTP and queued
in /var/spool/mqueue
3. the remote mail server is
resolved via DNS, and a
connection is tried to port 25
4. if the message is delivered
successfully, it is removed from
mqueue, else it remains until
mqueue is processed again by
the local mail daemon
5. local messages are delivered by
/bin/tsmail to
/usr/mail/USER.ACCOUNT