Forum Discussion
Recipient SendAs:You can't use the domain because it's not an accepted domain for your organization
you are right, but i am referring to syncing but not migration. even in AD Connect newer version we have this option for syncing mail enabled public folder exchange.
hope you understand my issue from my previous post and this one
please assist.
You might have already resolve this issue, however just wanted to check what was the resolution.
I have been able to resolve similar issue using the below mentioned action plan.
- Check the UPN and Email Addresses of the users that you are having problems with.
- Chances are they have an email address on a domain that is not verified against your Office 365 tenant. Usually something like mailto:user@domain.local.
One can use the below commands to check the proxy address and domain.
https://docs.microsoft.com/en-us/office365/enterprise/powershell/connect-to-office-365-powershell
Get-MsolDomain
Get-MsolUser -UserPrincipalName user@domain.com | FL *ProxyAddresses*
Connect to Exchange Online PowerShell
Get-AcceptedDomain
Get-Mailbox user@domain.com | select -ExpandProperty EmailAddresses
Launch Exchange Management Shell
Get-AcceptedDomain
Get-Mailbox user@domain.com | select -ExpandProperty EmailAddresses
Ref link
https://x500.co.uk/2018/04/03/send-as-you-cant-use-the-domain-because-its-not-an-accepted-domain-for-your-organization/
http://kevinongkl.blogspot.com/2016/09/you-cant-use-domain-because-its-not.html
https://community.spiceworks.com/topic/337146-you-can-t-use-the-domain
Regards
Mukesh Rawat