Change Primary SMTP Address for Bulk O365 Users
Change Primary SMTP Address for Bulk O365 Users
Requirements:
CSV File
Powershell
O365 Global Administrator Account
Accepted O365 Domain
**Procedure:**
Step 1. Connect to O365 using PowerShel

Step 2. Create your CSV File with the following values.


$csv = Import-Csv C:\Users\malik\Desktop\emailchange.csv foreach ($line in $csv)
{ $SMTP ="SMTP:"+$line.AliasEmailaddress
Set-Mailbox -Identity $line.User -EmailAddresses $SMTP -WindowsEmailAddress $line.AliasEmailaddress }
Updated on: 31/01/2023
Thank you!