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.
• Connect office365:
• Run the following command in PowerShell
   $csv = Import-Csv C:\Users\malik\Desktop\emailchange.csv foreach ($line in $csv)
  { $SMTP ="SMTP:"+$line.AliasEmailaddress
  Set-Mailbox -Identity $line.User -EmailAddresses $SMTP -WindowsEmailAddress $line.AliasEmailaddress }