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OT: pam_unix(dovecot:auth): authentication failure.



Good time of the day.


Excuse me for off-topic.

Could You please comment this auth. failure:

localhost auth: pam_unix(dovecot:auth): authentication failure;
logname= uid=0 euid=0 tty=dovecot ruser=null rhost=91.201.64.249

?

As I understand this - one tried to login to dovecot - but dovecot was
closed by firewall from that IP, or it was tried from local side and
therefore I have a security issue inside of my system?

Thank You for Your time.


Sthu.


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