I configured relaying on our exchange server and allowed some internal IP address’s (obviously the servers which need to send email). But for some reason its no longer working and I cant quite figure out when it stopped or why its stopped.
If I telnet from an authorised server specify the senders address [email protected]ain.com that’s fine and then an external email address I get the error 550 5.7.1 Unable to relay error – any ideas whats causing this?
I have added additional email domains to the email address policies as we have multiple email domains.
Not to worry I fixed it, I don’t remember doing it but the externally secured wasn’t ticked and it must have been me that unticked it as Im the only admin :O)