Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

Professional Opinions
Ask a Question
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

troubleshooting Question

Mail contact users not appearing in Distribution List - Exchange 2013

Avatar of Bash
BashFlag for United Kingdom of Great Britain and Northern Ireland asked on
ExchangeOutlookMicrosoft 365Azure* distribution groups
7 Comments1 Solution622 ViewsLast Modified:
We have a Hybrid Exchange environment in-place between Exchange 2013 and Exchange Online.

We have created Mail Contacts on our On-Prem Exchange for users whose mailboxes are in Exchange Online. These contacts have then been added to an On-Prem Distribution List. Whilst they appear in the DL properties, they do not appear when the DL is expanded within Outlook therefore do not receive emails sent to that DL.

I've run:

 [PS] C:\Windows\system32>Get-DistributionGroupMember "DL Name" | where {$_.HiddenFromAddressLis
tsEnabled -eq $true}

To ensure no users are marked as Hidden (various online posts point to this being the issue) and also checked the HiddenFromAddressList properties of the DL in question - this is also set to False as expected.

Running the above command with the $false parameter returns 80 address, expanding the list in Outlook returns 66. Some members are themselves lists, does that account for some discrepancy?

I've checked Azure AD Sync and it's working fine.
Avatar of Bash
BashFlag of United Kingdom of Great Britain and Northern Ireland imageContractor

Our community of experts have been thoroughly vetted for their expertise and industry experience.

This problem has been solved!
Unlock 1 Answer and 7 Comments.
See Answers