[PERDITION-USERS] Perdition - Dovecot - Roundcube

I have a perdition server that is proxying for a Roundcube webmail as well as all the various other email clients out there. On occasion while a user is moving around their mail folders or opening emails perdition will disconnect from the dovecot servers. I get this error in the dovecot servers log: dovecot: IMAP(username): Connection closed That is the only thing I can see anywhere that indicates something wrong. Most clients complain about a connection problem of some kind then go on with life. Roundcube is a pain because when it happens it kills the session and logs the user out. I updated to the latest perdition and the issue hasn't gone away. I am using Centos 5 which comes with dovecot 1.0.7 installed. I know that is an old version but I don't really want to mess with it and make it break if I update other parts of the server using the supported yum repos. I also am not sure it has anything to do with the dovecot server since if I point roundcube or another client directly at the dovecot server without going though perdition it works with no issue. I would like to find a solution with perdition since I have built a mail system around it using 9 different mail hosts and one central point to check your mail. I will look into updating the dovecot servers if that is what it takes but I would like to avoid it if possible until they are updated by the usual yum update. I have looked for ip limits but I don't see any in that version of dovecot. If I add the 'mail_max_userip_connections = 100' to the config file dovecot will not even start so this version does not support it. I moved the connection_limit in perdition up way past what the number of connections that could possibly hit is and it didn't change the behavior. One thing that I noticed that is a little different is when the client is connecting directly it logs in using "A0002 AUTHENTICATE PLAIN somelongstringofnumbersandletters". When it is going through perdition it logs in like this: flim08 LOGIN {7} + OK username {8} + OK password flim08 OK Logged in. I don't know if that makes any difference. Thank you for any assistance. Mark