On Sun, 18 Jan 2009, Gary V wrote: > On 1/17/09, Timo Sirainen wrote: > > On Jan 17, 2009, at 2:36 PM, Gary V wrote: > > > Then a bounce is created stating the mail was rejected: > > > > > > Your message to <t...@example.com> was automatically rejected: > > > Quota exceeded (mailbox for user is full). > > > > > > Question: is it possible (without changing code) to alter this to > > > where deliver would instead tempfail or something. Somehow it seems > > > wrong to me to tell the MTA that everything is good, and then silently > > > discard messages - regardless of the fact dovecot creates a bounce. > > > This is not necessarily ideal either, but I _am_ wondering if this is > > > configurable or not. > > > > > > > a) deliver -e > > > > b) quota_full_tempfail=yes > > > > c) a+b > > > > Just as a matter of interest. On my Postfix system: > > a) Using deliver -e, Postfix bounces the message immediately 5.7.0 -> > Subject: Undelivered Mail Returned to Sender. Partial body: > "<t...@example.com>: permission denied. Command output: Quota exceeded > (mailbox for user is full)". Postfix does not retain the message. > > b) quota_full_tempfail=yes: defers the message with 4.3.0. If the user > makes room for the message, then it will eventually be delivered. If > they don't, then _eventually_ a bounce will be sent. In this case the > bounce is less informative. Partial body: "<t...@example.com>: > temporary failure". In the case where the message is not delivered, > using default settings in Postfix, the sender will be notified 5 days > after they sent the message. > > c) For over quota with a+b, it behaves the same way as b, but the > bounce notice will be more informative: Partial body: > "<t...@example.com>: temporary failure. Command output: Quota exceeded > (mailbox for user is full)". > > I would say this is expected. > > Each of the four possibilites has advantages and disadvantages, and > personally I think a) might be closest to "doing the right thing", but > it would be cool to have the option of deferring the mail (using > option a+b) and additionally have deliver immediately send a message > to the sender notifying them that their mail has been delayed due to > the recipient being over quota. Something like:
I prefer a) because it does not involve backscatter in the case of spoofed sender addresses. -- Sahil Tandon <sa...@tandon.net>
