I have 2 email accounts in @outlook.com. Now, after several years, I restarted using the oldest one again. But I see that every mail I send with it there is also a mail send to another mailaddress of me. However, that mailserver, being @tomaatnet.nl, stopped a few years ago. So it cannot be found by outlook any more. After several hours I get a message that the address is not valid. Of course it is not. Searching my account I cannot find anywhere that @tomaatnet.nl address. Searching the internet I now think that there is a rule in my account that creates and sends a copy of every mail I send. But I cannot see how that is done. Do not see in ccc nor bcc nor any option in system. Only in the outbox I see that at the same time the copy is send too. Using outlook.exe or thunderbird does not make a difference. I have two PC's. One is running Linux the other Windows and both send a copy. So the copy lookes to be created by my @outlook.com account and not by the mail program.
Where do I have to go to delete that copy sending?
Where do I have to go to delete that copy sending?