[Dovecot] authentication troubles

[Albert Dengg]

hi

i have a strange problem with my dovecot installtion:
i configured it to accept digest-md5 authentication only but for some
reason mailclients (i tried mutt and thunderbird so far) want to log
with PLAIN (which fails of course).
authentication basically works, e.g. if i explicitly set
set imap_authenticators="digest-md5
in .muttrc everything works...
any idea what is going wrong?

config attached below

tia

yours
albert


# /etc/dovecot/dovecot.conf
log_timestamp: %Y-%m-%d %H:%M:%S 
protocols: imaps pop3s
ssl_listen(default): *:22993
ssl_listen(imap): *:22993
ssl_listen(pop3): *:22995
ssl_cipher_list: ALL:!LOW
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
login_executable(imap): /usr/lib/dovecot/imap-login
login_executable(pop3): /usr/lib/dovecot/pop3-login
first_valid_uid: 107
last_valid_uid: 107
mail_location: maildir:%h/Maildir
mail_executable(default): /usr/lib/dovecot/imap
mail_executable(imap): /usr/lib/dovecot/imap
mail_executable(pop3): /usr/lib/dovecot/pop3
mail_plugin_dir(default): /usr/lib/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3
namespace:
  type: private
  location: maildir:%h/Maildir
  inbox: yes
auth default:
  mechanisms: digest-md5
  realms: mailstore.nicenamecrew.com
  default_realm: mailstore.nicenamecrew.com
  username_format: %Lu
  verbose: yes
  debug: yes
  debug_passwords: yes
  passdb:
    driver: sql
    args: /etc/dovecot/dovecot-sql.conf
  userdb:
    driver: static
    args: uid=vmail gid=vmail home=/var/mail/virtual/%d/%n
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 432
      group: vmail

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