How to allow external email to send email to distribution list (NEW EAC)

Question

Spun from this:

Allow external email address to send mail to DL - Microsoft Community

Are these options in the new EAC, now that those options have been fully migrated? We run on-prem AD and the Distribution List does not have a "Settings" tab in the new EAC:

Answer 1

Hi, you can allow this via on-prem Exchange:

https://learn.microsoft.com/en-us/exchange/recipients/distribution-groups?view=exchserver-2019#delivery-management

Answer 2

Hi @CCSTek

Is this group synced from on-premises?

If yes, please follow the suggestions of this message to edit the settings in on-premises Exchange:

You can only manage this group in your on-premises environment. Use 'Active directory users & groups' or 'Exchange Admin Center' tools to edit or delete this group.

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Answer 3

Hi there, Thank you for your time!

Yes, the Distribution List is sync'd from the on-prem AD.

I'm looking for what needs to be changed/set in the on-prem object to allow external contacts to be able to email this internal Distribution List.