Forum Discussion
Delayed delivery for Dynamic Distribution Groups
Hi all, We have some problems with the mail-delivery for Dynamic distribution groups. We come from an on-premise Exchange 2013 environment. We created some Dynamic groups, based on the AD-organiz...
Hello Andres Bohren,
Thanks again.
The old environment was indeed Exchange 2013. We migrated to Exchange 2019.
The members per Dynamic group are between 200 and 400.
When I check the expansionserver, there is no server mentioned in the Powershell-output.
Thanks again.
The old environment was indeed Exchange 2013. We migrated to Exchange 2019.
The members per Dynamic group are between 200 and 400.
When I check the expansionserver, there is no server mentioned in the Powershell-output.
>When I check the expansionserver, there is no server mentioned in the Powershell-output.
Same here - so i guess that's good.
>It is only the hop to Exchange 365 that is delayed.
So we know the "bottleneck" is between your onPrem Servers (no Edge i guess?) and Exchange Online.
Have a look at your Exchange Online Inbound Connector
- ConnectorType : OnPremises
- CloudServicesMailEnabled : True
Check your Outbound connector OnPrem
- CloudServicesMailEnabled : True
- SmtpMaxMessagesPerConnection : 20
You could also check Get-TransportConfig in EXO and OnPrem or rerun the Exchange Hybrid Wizard.
Other than that i have no idea. Might be a Situation where you need to open a Microsoft Case.
Regards
Andres
- Hello Andres Bohren,
Thanks. I reviewed the connector setting and they are configured as you descriped.
Regards,
Arjan- Last Friday I had to use the dynamic mailgroups myself. I just reviewed the message trace for this action. There were 3 dynamic groups I used, with in total 850 recipients. I noticed that Exchange is splitting the recipients in groups of aprox. 200 recipients every 10 minutes.
Apparently we are only allowed to send 200 messages every 10 minutes? 😞