Quoting Joseph Tam jtam.home@gmail.com:
Is there a reason I should prefer LMTP over LDA for local delivery? Performance? Security? The Wiki doesn't differentiates LMTP vs LDA with respect to sendmail configuration, so am I correct that I just need to replace mail.local with dovecot-lda, which will choose LDA/LMTP based on dovecot.conf?
I don't know about your other two questions, but :)
I used to use LDA, but little issues crop up with it, mainly doing
with upgrades and interfacing to it from the mda. Generally these are
one time setup issues (except when upgrades undo changes). For the
upgrade issue I finally switched to LMTP, and I love it, the logs it
produces are much nicer, I don't have to worry about upgrade or
anything else having compatability issues, cause it's just a
connection, no direct program interfacing going on.
The paramaters that get passed, while not that hard, can be
interesting to setup, it seems lmtp passes much more info than you
could pass to the deliver-lda program on the command line.