The wiki http://wiki.dovecot.org/Iptables leads me to believe that the only way to configure dovecot to listen for the same protocol on multiple ports is via external redirection (iptables or similar). Is that so, or can dovecot be directly configured to listen on multiple ports?

Here's a concrete example of what I'm trying to accomplish. Our environment uses plaintext authentication, and so we force our users to use TLS for IMAP. For some internal connections (specifically with dovecot built-in proxying), we need non-TLS connections for IMAP. It's completely OK here if we need to listen on different ports for the two flavors of connections.

Can dovecot be configured to handle this and/or do we need to run multiple instances of dovecot with different config files?

Thanks

bill-dovecot@carpenter.ORG (WJCarpenter) PGP 0x91865119 38 95 1B 69 C9 C6 3D 25 73 46 32 04 69 D6 ED F3