FAQ 000155 – Office 365 users are unable to see on-premise dynamic distribution lists

This article applies to: Office 365 Exchange hybrid   PROBLEM: Office 365 users don't see on-premise dynamic distribution lists in their Outlook Address Book. CAUSE: Due to architectural differences in local Active Directory/Exchange  and Office 365, the on-premise Dynamic Distribution Groups do not get replicated to Office 365. This is by design. SOLUTION: In

FAQ 000151 – How to troubleshoot e-mail delivery delays with Message Header Analyzer

This article applies to: Outlook 2016 Office 365 Message Header Analyzer   PROBLEM User reports that an e-mail message was delivered with a delay and as a first troubleshooting step, you need to figure out where exactly did the congestion occur.   SOLUTION The information about the exact congestion location is quite easy to get from the e-mail message header.  Along the e-mail