An MTA like Postfix will manage its own queue, so your program writes out a mail message and gets "success" that it has been delivered to Postfix.

Nullmailer does exactly that, and ONLY that. The really great part about nullmailer is that it needs very little configuration compared to huge packages like postfix or exim, and it is harder to get the configuration wrong. The Debian wiki explains the configuration quite well, and so does the Arch-Linux wiki.

If Postfix has a problem delivering it, you'll need separate monitoring to find out about that, and meanwhile the messages will pile up in the queue on the raspberry Pi.

I usually have some cron jobs running on all machines, at least some kind of backup, a disk full check, or SMART and RAID integrity checks. So I get one cron-job mail per day per machine. If I don't get that mail, something is wrong. No extra monitoring needed.

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

In reply to Re^4: MTA for Perl by afoken
in thread MTA for Perl by Bod

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