This function searches for email addresses across Exchange Online recipients,
Microsoft 365 users, and deleted users.
It can filter results by specific email
addresses or by domain.
This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters.