On 16.12.2011, at 18.15, Carlos Mennens wrote: > I have my webmail application tied to Postfix / Dovecot server & now > for some reason the IMAP sessions oddly time out throughout the day > and then logging back into the mail system over the web is painfully > slow. The only thing I've seen that fixes it is to reload the Dovecot > daemon in Linux: .. > I'm running Dovecot-1.0.7-7.el5_7.1.
That's rather old. Might get solved simply by upgrading. You could try if using high-performance mode of login processes helps: http://wiki.dovecot.org/LoginProcess Another reason might be your PAM setup.
