We're considering a move from Courier to Dovecot. So far, looks like it's not too bad, but the most challenging obstacle is what to do about our local delivery. Factors:
- we use a lot of maildrop "features" that are impossible in sieve
without piping to an external program (would rather not re-write our working maildrop scripts in another language)
would love to try dbox
we use IMAP/Maildir++ quotas (looks like with a little finesse it's possible to get maildrop and dovecot to play nice on this account, yes?)
I saw it suggested to just call LDA from maildrop for any maildrop "to" commands (hmmm, what about "cc"?) here:
http://article.gmane.org/gmane.mail.imap.dovecot/56120
How much overhead will this take? Would it be possible or advisable to use LMTP instead if that would help? Is this idea just too crazy?