Hi list,
from today when sending emails to one of our supplier we receive:
Arrival-Date: Mon, 1 Nov 2021 11:19:08 +0100 (CET) Final-Recipient: rfc822; user@userdomain.com Original-Recipient: rfc822;user@userdomain.com Action: failed Status: 5.7.1 Remote-MTA: dns; mx-01-us-east-2.prod.hydra.sophos.com Diagnostic-Code: smtp; 550 5.7.1 XGEMAIL_0003 Command rejected
Doesn't matter if sended using our email server or from gmail, same result.
Any clue ?
Daniel
Added tags
[edited by: Raphael Alganes at 8:32 AM (GMT -7) on 1 Jun 2023]