- Dec 5, 2017
After installing exchange 2013 at a customers business they now have an issue where they cannot send email to anyone with the same mail domain as them. It just comes back as undeliverable. Their domain is as an example: XXXXXXX-id.com. This domain isnt just theirs... it is owned by a local ISP and is used all over town for peoples email accounts. Their internal email is flowing ok and they can email anyone outside with a different mail domain. Its as if the mail server deems the XXXXXXX-id.com all internal no matter what. Help please!!