Re: [Dovecot] Force STARTTLS on port 143 for !internalnetwork

[Nick Rosier]

Ralf Hildebrandt wrote:
Hi!
How can I force users which are connecting from OUTSIDE our newtworks
to user STARTTLS on Port 143?

Right now we resort to IMAPS on port 993, but an additional STARTTLS
enabled login on the default port would make things easier!

You can probably add login_trusted_networks = localnet

IIRC this allows for unsecure login from your localnet but forces all 
other networks to use a secure authentication method (e.g. SSL, 
STARTTLS, CRAM or DIGEST).

N.