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The email cannot send out to hotmail

Posted: Tue Jul 07, 2020 10:05 am
by weechengkhor
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
host [XXX.XX.XX.XX]
SMTP error from remote mail server after pipelined end of data:
550 5.7.1 Unfortunately, messages from [XXX.XXX.XX.XX] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3140). You can also refer your provider to []
Reporting-MTA: dns; xxx

I have submit to hotmail, but the support team reply do not qualify for mitigation.
How to solve this problem?

Re: The email cannot send out to hotmail

Posted: Sun Aug 02, 2020 2:56 am
by kirometep
Same issue here