╭considering: -oMas authenticated_sender = $authenticated_sender
├──expanding: -oMas authenticated_sender = $authenticated_sender
╰─────result: -oMas authenticated_sender = xx@yy.zz
╭considering: -oMas authenticated_sender = $authenticated_sender
├──expanding: -oMas authenticated_sender = $authenticated_sender
╰─────result: -oMas authenticated_sender = xx@yy.zz