dovecot - Aug 2013 - Rfc: Limit the size of an email IN the mailbox

Currently we're in the process of migrating Dovecot mailboxes to
Exchange. 

This is all working very well, except for the occasional user, who used
his/her Drafts folder as a file storage: They started writing an email
containing lots of image attachments (and thus exceeding our
maximum_message_size by far). So the mail never gets sent, but stays in
the Drafts folder.

Once I try moving that mail to exchange, it won't accept the message
since it's too big. I think it would be interesting to have a limit on
the total size of an IMAP object, just like in SMTP.

Thought?

-- 
Ralf Hildebrandt
  Gesch?ftsbereich IT | Abteilung Netzwerk
  Charit? - Universit?tsmedizin Berlin
  Campus Benjamin Franklin
  Hindenburgdamm 30 | D-12203 Berlin
  Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
  ralf.hildebrandt at charite.de | http://www.charite.de

Am 20.08.2013 10:32, schrieb Ralf Hildebrandt:
> Currently we're in the process of migrating Dovecot mailboxes to
> Exchange. 
> 
> This is all working very well, except for the occasional user, who used
> his/her Drafts folder as a file storage: They started writing an email
> containing lots of image attachments (and thus exceeding our
> maximum_message_size by far). So the mail never gets sent, but stays in
> the Drafts folder.
> 
> Once I try moving that mail to exchange, it won't accept the message
> since it's too big. I think it would be interesting to have a limit on
> the total size of an IMAP object, just like in SMTP
should not be difficult to implement

dbmail has a setting after a feature-request from me because
the "smart" Apple Mail resulted in crashing the server multiple
times by a user on the LAN who draged the wrong attachment to
a new message which was a some GB large video and Apple insists
trying to save the draft each time the server comes back

dbmail.conf:
max_message_size = 36700160

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On 20.8.2013, at 11.32, Ralf Hildebrandt <Ralf.Hildebrandt at charite.de>
wrote:
> Currently we're in the process of migrating Dovecot mailboxes to
> Exchange. 
> 
> This is all working very well, except for the occasional user, who used
> his/her Drafts folder as a file storage: They started writing an email
> containing lots of image attachments (and thus exceeding our
> maximum_message_size by far). So the mail never gets sent, but stays in
> the Drafts folder.
> 
> Once I try moving that mail to exchange, it won't accept the message
> since it's too big. I think it would be interesting to have a limit on
> the total size of an IMAP object, just like in SMTP.
> 
> Thought?
Maybe a new mail_max_msg_size setting that is used also by the upcoming
submission server.