[Dovecot] frequent index rebuilds versus disabled indexes

[Justin McAleer]

Ok, here's the short and sweet version of my dilemma. I have a group of 
servers mounting a shared NFS device to hold mail data for many 
different domains. Is it worth the load balancing management nightmare 
of setting up dedicating smtp, pop, and imap to one server (failing over 
to another in the group if the server goes down) to keep indexes on 
local disk? It's very tempting to just disable indexes and not worry 
about which server a user hits, and considering the vast majority of our 
170,000 accounts only have about a 20MB quota, I'm not sure indexes will 
help that many users. Although, I guess I would need to work out 
something for the few huge accounts we do have.