02-24-2010
First, check if the process is still there using ps and grep
Second, if you can, try and connect to TCP port 25 and try to get an reaction out of it.
But more fundamentally: if the mail service is down, how do you intent to send a mail telling you it's down? I'd solve that one first.
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LEARN ABOUT DEBIAN
sendmailconfig
SENDMAILCONFIG(8) System Manager's Manual SENDMAILCONFIG(8)
NAME
sendmailconfig - configure sendmail for Debian systems
SYNOPSIS
sendmailconfig [--no-reload]
DESCRIPTION
sendmailconfig is used to simplify the configuration of sendmail(8) for use on Debian systems.
In the simplest case, you may run this program to (re)configure sendmail for your Debian system at any time. It will modify the file
/etc/mail/sendmail.mc in order to create a working sendmail configuration which will be written to the file /etc/mail/sendmail.cf.
For advanced configurations, you can modify the sendmail.mc file before generating sendmail.cf. Future invokations of sendmailconfig will
preserve these changes provided they are made at the end of the file.
Normally sendmailconfig will ask if you want to reload sendmail after making changes to its configuration. The --no-reload option will
avoid this question.
FILES
/etc/mail/sendmail.mc
sendmail m4 input to generate sendmail.cf
/etc/mail/sendmail.cf
actual sendmail configuration file
/etc/mail/sendmail.cw
names for which we will accept mail in the standard configuration
/etc/mail/sendmail.ct
names of trusted users in the standard configuration
SEE ALSO
sendmail(8)
AUTHOR
Robert Leslie <rob@mars.org>
21-Jan-1997 SENDMAILCONFIG(8)