From: Mail Delivery System <******@cpanel.sicob.hu>
Sent: Tuesday, May 5, 2020 8:21 AM
Subject: Mail delivery failed: returning message to sender
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:
[email protected]
host hotmail-com.olc.protection.outlook.com [104.47.57.161]
SMTP error from remote mail server after pipelined MAIL
FROM:<******@farkasesnagy.hu> SIZE=12153:
550 5.7.1 Unfortunately, messages from [94.199.48.79] 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
http://mail.live.com/mail/troubleshooting.aspx#errors.
[DM6NAM11FT038.eop-nam11.prod.protection.outlook.com]