I'm running Dovecot to let people access their email on my server. Unfortunately, some are on networks where they can't connect on the normal IMAP port, so I'm trying to change it. I changed the config to contain:
protocol imap {
listen = *.1433 *.143
...
Then dovecot fails to restart:
Fatal: listen: Can't resolve address *.1433: Name or service not known
What's the correct way of doing this? If possible, I'd prefer to have it listening on both ports.