dovecot - Jan 2011 - mail to admin when quota exceeded

We're using Dovecot v1.2.15 LDA/IMAP/POP3+MySQL with quota plugin,
quota_rule per-user size, quota_exceed_message and quota_warning on
storage=90%%.with script.
Everything is working as expected.
But I've been asked to configure it the way, that when a user gets message,
which would make his maildir over quota limit, notification go not only to
sender, but also to postmaster at domain.com.
Browsed wiki, mailinglist archive - couldn't find anything on that.
Is there a way to implement such feature?
And what about possibility to send a message to user, notifying him about
rejected email "from: xxx at yyy.com" with "subj: blah blah"
due to full
mailbox? Such messages are small and would not take too much space. Thus the
user would know what he misses, urging him to clean his mailbox.

Thank you in advance.
--
Karolis

On Wed, 2011-01-12 at 01:06 +0200, Karolis ?vaig?dinas wrote:
> We're using Dovecot v1.2.15 LDA/IMAP/POP3+MySQL with quota plugin,
> quota_rule per-user size, quota_exceed_message and quota_warning on
> storage=90%%.with script.
> Everything is working as expected.

> But I've been asked to configure it the way, that when a user gets
message,
> which would make his maildir over quota limit, notification go not only to
> sender, but also to postmaster at domain.com.
> Browsed wiki, mailinglist archive - couldn't find anything on that.
> Is there a way to implement such feature?

I use a perl script querying DB and test active domains (since there is
no domain quotas) every hour, you could adapt it to test users and send
a message rather than what it does,  if you dont have many users it
should not be much of a problem. it warns the domain manager, and
suspends inbound mail. nasty but a necessary evil. but I think you need
to make your warning messages more compliance strict, we send a friendly
relaxed warning at 75%, a more serious message at 90% telling them to
clear out old stuff and purge unneeded now, not wait until they dont see
any new mail and wonder why, if they dont clear out the mail, they have
no one but themselves to blame.

 
> And what about possibility to send a message to user, notifying him about
> rejected email "from: xxx at yyy.com" with "subj: blah
blah" due to full
> mailbox? Such messages are small and would not take too much space. Thus
the
> user would know what he misses, urging him to clean his mailbox.
> 

Thats all nice and well, but what if you have these limits because of
disk space, 1000 users getting 100 of these a day WILL add up.

That said, if you use dovecot 2.0.x's LDA, you *can* do this now, and
the wiki IIRC, does tell you how - we still use 1.2.x so I don't have
the command immediately at hand but recall seeing it (it might even work
on 1.2.x, but never bothered trying it)


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On Wed, 2011-01-12 at 01:06 +0200, Karolis ?vaig?dinas
wrote:
> We're using Dovecot v1.2.15 LDA/IMAP/POP3+MySQL with quota plugin,
> quota_rule per-user size, quota_exceed_message and quota_warning on
> storage=90%%.with script.
> Everything is working as expected.
> But I've been asked to configure it the way, that when a user gets
message,
> which would make his maildir over quota limit, notification go not only to
> sender, but also to postmaster at domain.com.
> Browsed wiki, mailinglist archive - couldn't find anything on that.
> Is there a way to implement such feature?
You could configure sendmail_path to a script that adds postmaster to
the recipients list before execing the real sendmail. This of course
assumes that you're not using Sieve, because then the sendmail_path is
executed for other reasons as well. Or alternatively you could read the
message body and see if it's a out-of-quota reply or not..
> And what about possibility to send a message to user, notifying him about
> rejected email "from: xxx at yyy.com" with "subj: blah
blah" due to full
> mailbox? Such messages are small and would not take too much space. Thus
the
> user would know what he misses, urging him to clean his mailbox.
Same as above, make the script deliver the "out of quota" mail to user
(with quota disabled so it won't go to infinite loop).

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