Hello Exim fans!
I use Exim with Maildir support, and Courier-IMAP for IMAP access.
All mail folders are owned by a common UID/GID, so that users cannot
access their mail directly (only via POP or IMAP).
Works perfectly fine, except for the quotas.
File system quotas don't make any sense with a common UID/GID.
While Exim leaves it to the administrator how to implement
MTA-imposed quotas, Courier-IMAP comes with Maildir++ quotas
(that special "maildirsize" file).
src/transports/appendfile.c doesn't look like there's any
support for Maildir++ quotas (maildirsize) in Exim. And it's,
well, uh... not very "modular". ;-)
Maybe there's already a patch for support of Maildir++ quotas?
Or anyone found a way in the configuration file to parse
the "maildirsize" file and set "quota" for that transport
accordingly?
Currently, I use a proprietary quota file (something like
"quota=4000K threshold=80%") quite similar to "maildirsize"
in the user's maildir directory, but I've no idea how to
parse the special format of a "maildirsize" file:
| The quota definition is a list, separate by commas. Each member
| of the list consists of an integer followed by a letter, specifying
| the nature of the quota. Currently defined quota types are 'S' - total
| size of all messages, and 'C' - the maximum count of messages in the
| maildir. For example, 10000000S,1000C specifies a quota of 10,000,000
| bytes or 1,000 messages, whichever comes first.
|
| All remaining lines all contain two integers separated by a single
| space. The first integer is interpreted as a byte count. The second
| integer is interpreted as a file count. A Maildir++ writer can add
| up all byte counts and file counts from maildirsize and enforce a
| quota based either on number of messages or the total size of all
| the messages.
[excerpt from
http://www.inter7.com/courierimap/README.maildirquota.html]
Suggestions are welcome! ;-)
Greetings, Andreas
