"@lbutlr" kremels@kreme.com writes:

(Are you the OP, or have I mistakenly atributed this to Rupert Gallagher?)

...

So what the composition of all this traffic? Are you saying the mail client is ultra dumb and repeatedly downloading entire messages, read and unread, attachment and all (i.e. you're truly bandwidth limited?)

It most certainly does not do that.

If this is the case for the OP, it's back to square one to find log entries, and/or nfsstat/iostat/vmstat/etc output to see what is "killing" the server. File locking issues, mail_max_userip_connections and process limit values could also cause service flakiness. Apple mail readers seems to gobble up IMAP connections like candy.

Joseph Tam jtam.home@gmail.com