If you are an Exchange Online or Exchange Online Protection (EOP) customer and you have configured connectors, this post contains important information that might impact your organization. To mak...
Updated Aug 28, 2026
Version 3.0
Blog Post
5 MIN READ
Important notice for Office 365 email customers who have configured connectors
What about the following scenario:
We have contacts in Exchange that have external smtp addresses. These contacts are in internal DLs that are available to users externally. When an external user sends an e-mail to the DL the mail will be sent to the external contacts part of that internal DL. Will those stop working?