I have being asked my a client to take over the installation of a new exchange server, its the first time ive done it and the last person who tried failed to fix the following error message,
Reporting-MTA: dns; smtp02.bis.eu.blackberry.com
Status: 5.0.0 (permanent failure)
Remote-MTA: dns; [18.104.22.168]
Diagnostic-Code: smtp; 5.1.0 - Unknown address error 550-'5.7.1 Unable to relay for email@example.com' (delivery attempts: 0)
i have replaced my clients email address with clientsdomain
The hosting company is not every helpful as to mx details and dns, they have gave me only an list of ip address thats it!
There IP address is actually: 22.214.171.124
i can provide the clients domain if needed.