I am running a mail server on a Linux box using Postfix + Dovecot. The Dovecot server is setup to accept only IMAPS in /etc/dovecot.conf:
# Protocols we want to be serving: imap imaps pop3 pop3s managesieve # If you only want to use dovecot-auth, you can set this to "none". protocols = imaps
and is using a self-signed certificate for this purpose:
ssl_cert_file = <somepath>/server.crt ssl_key_file = <somepath>/server.key
This works fine for a number of machines running Linux, Windows XP, Windows 7 and Mac OS X Lion.
Recently, we got a machine running Windows 8 and the bundled Mail App cannot connect to Dovecot. Initially, it was complaining about the certificate, but after installing it manually at the Windows 8 machine it now complains that:
“We still can't find settings for firstname.lastname@example.org. Providing this additional info may help. If you don't know this information, search online or check with your provider.”
Looking into the log file for Dovecot on the Linux server I see this:
dovecot: imap-login: Disconnected (no auth attempts): rip=<remote-ip>, lip=<local-ip>, TLS: Disconnected
For the clients that work, I see:
dovecot: imap-login: Login: user=<email@example.com>, method=PLAIN, rip=<remote-ip>, lip=<local-ip>, TLS dovecot: IMAP(firstname.lastname@example.org): Disconnected: Logged out bytes=157/383
Any ideas how to get the Windows 8 Mail App to connect and authenticate?