Forum Discussion
Microsoft 365 - Need to add .local domain to accepted domain list - Hybrid Exchange Server
We have a virtual SMTP server listed as a .local address that sends document emails to Microsoft exchange users within our organization. Our registered domains in EAC end with .com. We currently hav...
Our on-prem has Exchange Server 2016.
The .local subdomain didn't have to be added in the past. It just worked. I've tried added all sorts of mail flow exceptions and whitelisting, but the M365 Admin portal in general will not allow a .local domain.
Adding the domain to our physical Exchange server didn't seem to make a difference.
Hmm, sorry not sure then in this instance. Have you logged a ticket with Microsoft? I'd suggest this is the next logical step.
I got sick of the issue, so I pointed the application's SMTP settings to our hybrid exchange server instead of the local virtual SMTP server. We are all set. I'm thinking Microsoft may be trying to add more email security obstacles.