I can see the sendmail is started up by root as a
daemon, i.e. ps -ef | grep sendmail
root 25681 1 0 17:01:34 ? 0:00 /usr/lib/sendmail -bd -d 9 -q15m
But the sendmail service 25 can't be connected by using
"telnet hostname 25". While if the direct use of sendmail
It can send email correctly. Anybody know is it a configuration
problem or any other hints?