[Dovecot] Ongoing performance issues with 2.0.x

[Ed W]

Hi Ralf

Not sure how your setup is arranged, but do you perhaps have the 
opportunity to do a "partial upgrade" and switch say only POP or only 
IMAP users to 2.0? (Or only "deliver"?)  The thought is that you might 
narrow down it down a little?

I'm thinking if you use a virtualisation solution you might be able to 
duplicate your environment, plus perhaps some iptables magic?

Good luck

Ed W