Hi Team, Would it be possible to setup a different authentication method depending on the connection source? I would like to use oauth2 (with mfa) for connections from internet via haproxy, whereas on the lan I run samba-dc and hence AD (krb5) is the method to use. The latter is already setup and works fine, now I want to add oauth2 for haproxy connections (or outside lan ip-range). Here's the relevant bit of "dovecot -n": auth_default_realm = EXAMPLE.COM auth_gssapi_hostname = mailserver.example.com auth_krb5_keytab = /etc/keytab/dovecot.keytab auth_master_user_separator = * auth_mechanisms = gssapi gss-spnego plain auth_realms = EXAMPLE.COM passdb { ? args = /etc/dovecot/dovecot-ldap.conf.ext ? driver = ldap ? pass = yes } passdb { ? driver = pam } userdb { ? args = /etc/dovecot/dovecot-ldap.conf.ext ? driver = ldap } - Kees.