Whre are (unsent) emails stored?

[Bostjan]

I've noticed that I wasn’t receiving any emails from root account from FreeNAS. Such as notifications of start/finsh scrub, …

After some digging I’ve found out that my email sever (was using it just for FreeNAS) wasn’t working.




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Here is the question.

Is there a way to see what emails would have been send and weren’t? Are they saved somewhere?
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I’m not proficient in FreeBSD, please provide as much command as you can.


Thanks.

 

[Chris Moore]

Here is the question.

Is there a way to see what emails would have been send and weren’t? Are they saved somewhere?

There would normally be a text file in /var/mail/root but I don't know, the way FreeNAS is configured, it may delete the mail from that file once it thinks it has been sent.

 

[Elliot Dierksen]

There would normally be a text file in /var/mail/root but I don't know, the way FreeNAS is configured, it may delete the mail from that file once it thinks it has been sent.

That would be the case if it is delivering it to root's mailbox. Normally on a box running sendmail, those temporary files would in /var/spool/mqueue. There would be a qfSOMETHING (queue file with info about the message), and a dfSOMETHING (data file with the message body and some other stuff). I did some casual checking, but it doesn't look like FreeNAS is using sendmail. Whatever is doing the mail queuing is writing its temporary files in /var/tmp. Nothing is listening on port 25, so I don't know. I figured that out from the following sequence.

Code:

root@freenas2:/var/spool/mqueue # touch /tmp/fubar
root@freenas2:/var/spool/mqueue # echo test | mail -s test somebody@somplace.com # altered, obviously
root@freenas2:/var/spool/mqueue # find / -type d -newer /tmp/fubar -print
/var/tmp

I think my interest in what MTA (mail transport agent) FreeNAS is using is waning...