Cannot Email Microsoft Webmail through Symantec Hosted Mail (Hotmail, Live, MSN etc)
We have several clients that have been receiving errors when sending to Microsoft Web mail accounts such as Hotmail, Live and Msn.
The error they receive is ;
This message was created automatically by mail delivery software.
A message that you have sent could not be delivered to one or more recipients. This is a permanent error. The following address failed:
<ANYUSER@hotmail.co.uk>: Validating Sender
This is happening on 3 of our client sites, and to resolve we have set up temporary SMTP connectors using DNS to forward to these domains.
Is anyone else having this issue or know how to resolve it?