Article ID: 122901, created on Sep 15, 2014, last review on Sep 15, 2014

  • Applies to:
  • Plesk 11.5 for Linux


The following warning appears when entering mailbox:

warning: SASL authentication problem: setpass failed for username@domain.tld: user not found

Such warnings appear when using migrated mail accounts. However mail works correctly even though this warning appears.


Not supported feature auto_transition is enabled in configuration file /usr/lib64/sasl2/smtpd.conf .

# grep auto_transition /usr/lib64/sasl2/smtpd.conf
auto_transition: yes


Actually this warning may be ignored or you can disable auto_transition feature and the the warning will not appear again

# grep auto_transition /usr/lib64/sasl2/smtpd.conf
auto_transition: no

Search Words

smtp authentication

smtp authorization

SASL authentication problem

setpass failed for

user not found

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