For those that are worried about the md5 hash sending out most users to 1 server and thus loadbalancing badly. This doesnt seem to be the case. I just pointed one of our test webmail environments to a director cluster (2 director servers behind a foundry, pointing to 2 real imap servers), and this is what the load spread was after a few minutes:
imapdirector1:/usr/home/cor# doveadm director status mail server ip vhosts users 194.109.26.171 100 698 194.109.26.172 100 701 It doesnt get any better. It looks like Timo's choice of hash is spot on. Regards, Cor
