[Dovecot] setting up multiple listeners

[David Mehler]

Hello,

I'm using Dovecot v2 and am atempting to get webmail going. I'm trying
to set up imap so that port 993 only is listening on the external
interface, for both ipv4 and ipv6, but that on localhost only again
for ipv4 and ipv6 unencrypted port 143 is active. I've tried various
combinations but keep getting an error invalid number. I've googled
and not come up with the missing point.

Thanks.
Dave.