LinuxQuestions.org - dovecot SSL/TLS non-PAM config went awry

I installed dovecot 1.1.3 from slackbuilds.org for Slackware 12.2. I'm using the following for the config:

Code:

# 1.1.3: /etc/dovecot.conf

protocols: imaps

ssl_cert_file: /etc/ssl/www.myhostname.net.crt

ssl_key_file: /etc/ssl/www.myhostname.net.key

login_dir: /var/run/dovecot/login

login_executable: /usr/libexec/dovecot/imap-login

auth default:

  passdb:

    driver: shadow

  userdb:

    driver: passwd

Problem is, when I try connecting with Outlook Express, it says none of the auth methods are possible:

Code:

IMAP: 01:22:24 [db] Connecting to 'www.myhostname.net' on port 993.

IMAP: 01:22:24 [db] OnNotify: asOld = 0, asNew = 4, ae = 0

IMAP: 01:22:24 [db] Negotiating secure connection with 'Microsoft Unified Security Protocol Provider'.

IMAP: 01:22:24 [db] OnNotify: asOld = 4, asNew = 6, ae = 2

IMAP: 01:22:24 [db] OnNotify: asOld = 6, asNew = 6, ae = 4

IMAP: 01:22:25 [db] OnNotify: asOld = 6, asNew = 5, ae = 2

IMAP: 01:22:25 [db] OnNotify: asOld = 5, asNew = 5, ae = 3

IMAP: 01:22:25 [rx] * OK Dovecot ready.

IMAP: 01:22:25 [tx] joj4 CAPABILITY

IMAP: 01:22:25 [db] OnNotify: asOld = 5, asNew = 5, ae = 3

IMAP: 01:22:25 [rx] * CAPABILITY IMAP4rev1 SASL-IR SORT THREAD=REFERENCES MULTIAPPEND UNSELECT LITERAL+ IDLE CHILDREN NAMESPACE LOGIN-REFERRALS UIDPLUS LIST-EXTENDED I18NLEVEL=1 AUTH=PLAIN

IMAP: 01:22:25 [rx] joj4 OK Capability completed.

IMAP: 01:22:25 [db] ERROR: "PLAIN authentication failed. None of the authentication methods supported by your IMAP server (if any) are supported on this computer.", hr=0x800CCCDF

IMAP: 01:22:25 [db] Connection to 'www.myhostname.net' closed.

IMAP: 01:22:25 [db] OnNotify: asOld = 5, asNew = 0, ae = 5

I see SASL-IR, and I see AUTH-PLAIN. How do I config dovecot to check the shadow file? I thought I had that right...

When I try adding other mechanisms in dovecot.conf:

Code:

mechanisms = plain login digest-md5 cram-md5

dovecot fails to start complaining that:

dovecot: Fatal: auth(default): DIGEST-MD5 mechanism can't be supported with given passdbs

and when digest is removed, this:

dovecot: Fatal: auth(default): CRAM-MD5 mechanism can't be supported with given passdbs

What do I have to do to easily enable imaps only connections using a SSL/TLS conection with non-PAM user and passwd lookup?