alternatives for imapproxy

[Maciej Milaszewski]

Hi
System debian 8.11 and dovecot-2.2.36.4 My webmail is roundcube with
imapproxy.

I have one problem.

My dovecot servers is are in a cluster with keepalived like:

dovecot1----VIP-IP--------dovecot2

All works fine

I have a problem with imapproxy when a server dovecot1 had a problem
(kernel panic sic!)
Keepalived works perfecty and moved VIP to dovecot2 - all works fine for
normal users
but imapproxy gave a timeout and webmail clinet cannot connect

what do you recommend alternative to imapproxy ?

I use imapproxy because is fast ...