Hi!
I've just run into an error that really confuses me. Hopefully someone here has an idea what the source of the problem might be.
I created a new distribution group named QA-Mobile. When I try to send mails to the DG from Outlook (2016) I receive '550 5.1.11 RESOLVER.ADR.ExRecipNotFound; Recipient not found by Exchange Legacy encapsulated email address lookup' even though the recipient is there and the smtp-address is correct. When I try sending the same mail via OWA it works fine. (?)
I've also added a second smtp-address QAMobile and that works fine with Outlook.
Anybody got an idea how I can fix this? In over twenty years of being a MCT and Consultant for Exchange I've never run into this kind of problem...
Regards,
Gerrit
If you think your to small to make a differnce, try going to bed with a mosquito in the room...