Office 365 AD sync - Distribution lists for Office 365

[Marvin Oco]

We are using AD connect password hash only.

What is the best practice for Distribution lists for Office 365?

1. Office 365 AD sync - create distribution group from AD
2. Create distribution group directly in Exchange online

tnx

[#2]

Hi @Marvin Oco,

Are you using Exchange Hybrid ?

If so you need to create the Distribution Group On-Premises and AD Sync will replicate to Exchange Online.

[#3]

Make sure the OU that contains the DL on premises is synced in AADConnect

[#4]

@Brian Reid 

Hey Brian, I have entered the DL information in Azure Connect in the Metaverse Search, and I have added the necessary attributes to the DL object in AD. The DL is still not syncing with Office 365

Thank you

[#5]

@Dave_Crook 

you need to fill in the attributes on the object: displayname and mail

Furthermore: I have another question as well.

By default only internal (authenticated) senders are allowed to send e-mails to the distribution group. however, when you set it up like this, using on prem AD with Azure AD connect, external senders as allowed to send e-mail as well.

After some Googling I found that there is an attribute you can set as well: msExchRequireAuthToSendTo

However, I don't see this attribute.

Any ideas? You can't change this in O365 since it's a an on prem AD synced group.