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postfix/smtpd warning ?


Pitbull

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Guten Abend zusammen !

 

Habe vermehrt diese Eintr?ge in der mail.log evtl. kann mir jemand ein Tipp geben gerade in Verbindung mit Fail2Ban.

Sep 16 20:31:13 sv01 postfix/smtpd[30331]: warning: valid_hostname: misplaced delimiter: .
Sep 16 20:31:13 sv01 postfix/smtpd[30331]: connect from unknown[31.210.124.242]
Sep 16 20:31:15 sv01 postfix/smtpd[30331]: warning: unknown[31.210.124.242]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep 16 20:31:15 sv01 postfix/smtpd[30331]: disconnect from unknown[31.210.124.242]

LG

Pitbull

 

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