A proxy address is not being "transferred" to the cloud mailbox from on-prem

We have Exchange 2010 and o365 in a hybrid environment.  We setup new mailboxes and migrate them to the cloud. We also migrate old mailboxes to the cloud.  

Currently, we need to add a SMTP address to an on-prem mailbox and for some reason, it is not being shown in the cloud.

If someone has an idea of what to check, please advise.  

Other SMTP addresses of the cloud mailbox are working.

Thanks.
nav2567Asked:
Who is Participating?
 
Vasil Michev (MVP)Connect With a Mentor Commented:
Most likely the reason is duplicate SMTP address, or you have not validated the domain in question. Check the emails that the dirsync process is sending to the technical contact address, or simply open the MIISClient tool and look for errors on the last sync.

Another thing to check is to run this against EO PowerShell, it will show if the address is already configured for another object:

Get-Recipient user@domain.com

Open in new window

0
 
R--RCommented:
Did you included all the SMTP domain during the configuration.
0
 
nav2567Author Commented:
sorry, can you explain your question?
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.