> I'm planning to start to use Nagios to monitor some email servers. > The idea is having Nagios sending an email using check_smtp and then > retrive it using check_tcp. > > Can those two plugins accomplish this?
No, these two plugins only check for sanity on the ports and do not actually send/receive email. The way we do it here is to check all sorts of things. First, we use check_imap/check_smtp/etc to check that the ports are listening correctly. Then, we have checks for mail queue lengths on the mail servers (make sure they aren't too large as this indicates something is constipated...) Finally, I have a 5-min cronjob that injects an email into the mail system, addressed to a pseudouser on the Nagios host. This pseudouser is in fact a program which parses the email, identifies how long it took to arrive, and submits a passive service check into nagios with a status based on the delivery time. A service freshness check will set the service status to critical if no email is received for 30 mins (the critical threshold for mail delivery here). This is most likely the sort of thing you're after. The check_mail_loop plugin does similar to this but for people with a single POP mailbox - our system is bigger and so this was not appropriate for us. You sould make sure you are injecting your email into the system at a suitable place so that it does not bypass the majority of the normal mail flow, though. Steve ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
