Thank you for your reply.
I have no signature or address entered on the account.
I received a reply email and when I clicked on my email address then I realised that a postal code is displayed as “work adress “ . Then I sent an email to myself and the same occured.
My picture has been also added to my outgoing emails without my consent from Messenger.
I changed my photo in my account and now it still sends my old picture. When soneone receives my email and taps on my picture blob then the new picture will come up.
I am confused