Jan-Frode Myklebust schrieb:
Yes, and in ascii-art this becomes :-)
MTA -(lmtp)--> dovecot-director ---(lmtp)---> backend-server1
\---(lmtp)---> backend-server2
IMAP-user -(imap)--> dovecot-director --(imap) --> backend-server1
\--(imap) --> backend-server2
I failed creating a nice ascii view ;-)
However, I have some more questions:
- What happens if the MTA accepted a message but the backend-server
fails and is unable to store it?
- What about load-balancing and/or failover?
Maybe all users on backend-server1 are fetching their mails causing high
load while backend-server2 is idle.
Is it possible to specify more than one backend-server IPs as I can do
for the database hosts for userdb queries?