Monitoring a Mail Servers Health

Heyas,

I am using some network monitoring software 'PRTG' to monitor the health of my mail server. Rules have setup are as follows:

- Notify me when connection is down.
- Notify me when the mail server is greylisted.
- Notify me when the mail server is blacklisted.
- Notify me if >1000 emails get send out in a 5 minute period.
- Notify me DNS on the mail server fails.

Is their anything I should be checking for?

Any suggestions are welcome.

Thank you.
ZackGeneral IT Goto GuyAsked:
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frankhelkCommented:
To detect some kind of DOS attacks, I would monitor the amount of incoming connections, Amount of incoming mails and (possibly a bit more loose) the network load.

Not in the scope of a network monitoring software: Free HDD space.

Probably you could set up a tool that checks the functionality of themail server itself with a diagnostic loop:

- Tool sends a message to a diag account on the server,
- The server drops it into the diag account's mail box.
- The Tool fetches and deletes it from the server.

That way the core function of the server is checked.
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ZackGeneral IT Goto GuyAuthor Commented:
Cheers for the advice.
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