(Post updated on 3/26/2020 to add more information about installation process)
We wanted to let you know that we are releasing what we consider a significant update to Exchange Hybrid Configuration...
Updated Mar 26, 2020
Version 5.0
Blog Post
Hi prestoYO
Yeah, I described the same problem. What we do now, cause this is affecting both the IntraOrg Connector and the Org Relationship:
1. Run the HCW with first 238 domains selected
2. Afterwards we need to run the Set-OutboundConnector against the hybrid connector created that sends mails from O365 to On-premises Exchange defining all the domains we have (cause it will only have 238 domains after HCW is run)
3. Then we run the New-IntraOrganizationConnector that has the same config as the IntraOrg Connector that HCW created but defined with the rest of the domains above the 238 limit
4. Then we run the New-OrganizationRelationship that has the same config as the Org Relationship that HCW created but defined with the rest of the domains above the 238 limit
But this should really be fixed at some point cause this is major pain in the **bleep** and soon we will also reach 476 domains and it will become even more trickier.
Please fix that!