Test for EMOTET: Check here:
https://www.haveibeenemotet.com/Fake sender and recipient meant both mail results and address was spoofed,
and was sent through anonymailer or deadfake email service.
There is no legit reason to do so or use such services,
to send mails in name of another user, it is just pure evil,
and there is no excuse for it than being banned right away.
polonus