dovecot - Oct 2013 - Dovecot disconnecting while downloading large attachments

Hi,

 

We're using Dovecot 1.2.15 with Debian Squeeze. The mail server is working
properly (we use both POP3 and IMAP) with normal messages, but if we try to
download a large message (more than 20mb) using POP3, the server disconnects
and our application fails.

 

It's possible to change this behavior? How can we setup Dovecot so it
disconnects after 20 or 30 minutes (I think now is disconnecting after 10
minutes) of "inactivity"?

 

Regards,

 

Marc