Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 862
  • Last Modified:

Exchange Hybrid with Office 365. Dynamic Distribution Groups

Hi,

i need a little help with Dynamic Distribution Groups in Exchange Hybrid with Office 365.
So i have some users up in Exchange Online, created in cloud (not synced from AD - I have those, but this is not regarding them).

Now this client wants to include those users created In Cloud, in on-premises DDL (all users group), so that when they send email to all users, both users on-premises and those in cloud will receive it. ATM, only on-premises users are receiving it.

Any hint?

Regards,
Ivan.
0
Ivan
Asked:
Ivan
  • 2
  • 2
1 Solution
 
IvanSystem EngineerAuthor Commented:
PS: I taught that i could maybe:
1. create some in-cloud DDL that will hold all in-cloud users,
2. create new on-premises user/mailbox,
3. create mail contact with external email address of that in-cloud DDL

After that configure forward on new user (step 2) to forward all email to mail contact (step 3). Problem with this is that in-cloud users will not receive email from same user as on-premises, since that email is forwarded to them via some other account..

Maybe this is not much of a problem...
0
 
Vasil Michev (MVP)Commented:
You can create a mail user/contact object on-prem with the user@tenant.mail.onmicrosoft.com alias (or set it as targetname). For example, if you have a user john@domain.com in the cloud, he should also have john@domain.mail.onmicrosoft.com alias. Set this one as the proxyaddress (or better yet, the targetaddress) for the on-prem object, and mail will be delivered to the corresponding cloud mailbox.
0
 
IvanSystem EngineerAuthor Commented:
Hi,

to be able to include mail contacts to DDL, you need to include that type of object into it, since it is only sending to mailbox users atm.
Problem is, if i have 100 mail contacts, and only 5 are those in-cloud, how am i gonna tell exchange just to send to those 5, and not to rest 95?

I taught to use attributes, but then that would require to set attributes on all on-premises users and those mail enabled contacts..if i'm not mistaking?

Hmm..
0
 
Vasil Michev (MVP)Commented:
Create a mail user/mail contact on-prem, as noted above. You cannot include objects that are cloud-only in a DDL that's created on-prem, thus you need the objects on-prem. You can adjust the DDL filter as needed to include only the ones you want.
0

Featured Post

Prep for the ITIL® Foundation Certification Exam

December’s Course of the Month is now available! Enroll to learn ITIL® Foundation best practices for delivering IT services effectively and efficiently.

  • 2
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now