On Wed, Aug 22, 2018 at 6:30 PM Viktor Dukhovni <postfix-us...@dukhovni.org> wrote: > Why are you looking in the dovecot logs? This is a dovecot IMAP error, > not a Postfix smtpd(8) error...
Because you said that you had GSSAPI working using dovecot sasl, so I configured postfix to use dovecot instead of cyrus and got the same kerberos error. dovecot.log had more in depth logging of sasl errors than mailog.
