Global Search in Azure/Entra Exchange for smtp email address

Request:

I want to find the mailbox of an email address

Example:

Who is the mailbox owner of Scanner1@hpgbrands.com

Solution:

This solution assumes you have already installed the ExchangeOnline module in powershell

Open PowerShell and run the command

Connect-ExchangeOnline

YOu will be prompted to enter your Entra credentials.

Run this command and replace scanner1 with the email address you want to search for

Get-EXOMailbox -ResultSize Unlimited | Where-Object { $_.EmailAddresses -like "*Scanner1*" } | Select-Object DisplayName, EmailAddresses

The mailbox owner will be displayed in the results