troubleshooting Question

O365 and Exchange 2016 recipient unable to receive internal emails

Avatar of Barry Fields
Barry FieldsFlag for United States of America asked on
ExchangeMicrosoft 365
6 Comments1 Solution117 ViewsLast Modified:
I have an Exchange 2016/O365 hybrid environment. We just added a new user, she can receive mail from outside the domain but cannot receive mail internally. Our Exchange server returns the following error;

IMCEAEX-_o=NT5_ou=00000000000000000000000000000000_cn=7DC88A5C47EA274580F14F3D64E625DC@securewatch24.com
Remote Server returned '550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found'. This user is on O365
ASKER CERTIFIED SOLUTION
Barry Fields
IT manager

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 6 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 6 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros