I am currently using the EPEL Nginx package on a Centos 5.8 server to reverse proxy https connections from my DMZ to my internal LAN for external Zimbra webmail access. I would now like reverse proxy external imap/imaps connections from my DMZ to my internal LAN as well.
Using Nginx again to try and reverse proxy the imap/imaps connections looks like it will suck some time to works out. Therefore, what other options are available to do this?
Will Perdition or Dovecot reverse proxy an imap connection to a standalone Zimbra mail server?
Has anyone else done this or does anyone have any advice they could offer on the best method of doing this?