Forum Discussion
Teams Group Mail onpremise Exchange
hi all, actually we receive a 550 5.1.10 RESOLVER.ADR.RecipientNotFound error if we mail to a created e-mail group in teams. it's a hybrid environment and AD Connect and Exchange Hybrid Configura...
MarcBaeuml the group writeback is necessary to show up in the GAL for your on-premises users and requires Azure AD Premium P1 licenses. I can recommend to use a subdomain that will be created in your on-premises organization, because the MX record of that specific domain has to be configured to use EOP and no on-prem or third-party gateway. For more information, please see the Microsoft docs article: https://docs.microsoft.com/en-us/exchange/hybrid-deployment/set-up-microsoft-365-groups