Absenderbestätigte de mail

You're referring to the German phrase "Absenderbestätigte die Mail"!

In English, this translates to "The sender confirmed the email".

In German, "Absender" means "sender", and "bestätigte" means "confirmed" or "acknowledged". So, when someone says "Absenderbestätigte die Mail", they're indicating that the person who sent the email has confirmed receipt or acknowledged it in some way.