Hi,
Hope someone can help me.
im running mailserver, for some time.
suddenly sender of email get the error below:
the ip address 92.68.81.156 is never used, not in my lan nor the isp range (thats on 82.xxx.xxx.xxx)
i really dont know where to look, if the error is on the synology, or i have to change dns settings on my isp..
please help
----- The following addresses had permanent fatal errors -----
(reason: 550 5.7.1 ... Relaying denied. IP name possibly forged [92.68.81.156])
----- Transcript of session follows -----
... while talking to mail.van-geel [DOT] com.:
DATA
<<< 550 5.7.1 ... Relaying denied. IP name possibly forged [92.68.81.156]
550 5.1.1 ... User unknown
<<< 503 5.0.0 Need RCPT (recipient)
Reporting-MTA: dns; <>
Arrival-Date: Tue, 9 Sep 2014 12:20:04 +0200
Final-Recipient: RFC822; freddy [AT] van-geel [DOT] com
Action: failed
Status: 5.7.1
Remote-MTA: DNS; mail.van-geel [DOT] com
Diagnostic-Code: SMTP; 550 5.7.1 ... Relaying denied. IP name possibly forged [92.68.81.156]
Last-Attempt-Date: Tue, 9 Sep 2014 12:20:24 +0200