How to add Distribution Group email alias from CSV in office 365

Question

Hello Forum!
Hope someone can help me troubleshoot this or even let me know if its not possible. But, I used powershell to import distribution groups and set primary emails in Office 365. That worked great, but we have two domains and i would like to add an email alias
to all my DGs for the other domain.
This was my best attempt and its not going well:
Import-CSV "C:\distributionlists.csv" | foreach {Set-DistributionGroup "$_.Name" -EmailAddresses SMTP:$_.PrimarySmtpAddress,$SecondarySmtpAddress}
$_.Name is the column name for my DGs. IE: DL-IT
$_.PrimarySmtpAddress is the column name for my primary email. IE: [email protected]
$_.SecondarySmtpAddress is the column name for my email alias. IE: [email protected]

Answer 1

Hi,
Based on my understanding, the below code should work when your manually run it:
Set-DistributionGroup "DL-accounting"
-EmailAddresses SMTP:<Primary Email>,<Alias Email>
If all those distribution groups have been already created, then use set-distributiongroup command should work. How about first new those distribution group, and then run foreach block to do the loop.
Regards,
Yan Li
Cataleya Li
TechNet Community Support