Re: [Dovecot] enforce STARTTLS on port 110 with POP3?

On 10.1.2011, at 23.09, Zhou, Yan wrote:

The problem is that we have no way to enforce STARTTLS on 110, user can connect to DoveCot on port 110, sending user credential without STARTTLS (thus insecure).

default_plaintext_auth = yes

It's the default.