Thanks again, Frederick S.
, for setting me onto the correct path. Also, I slowly start to understand how the hijacker(s) went about. After my page had been switched back into English, I at first did not find any delete button next to the Security items in Managing
my website. Therefore, I asked for deleting all alternative accounts (even my own ones), instead. Next, I added my own alternatives again, and so on.
must have changed or removed my security questions or answers, because my correct answers where not accepted for identifying myself, when I tried to change my password. Nevertheless, I remembered enough unique features of recently sent messages and folder labels that I got the password changed. Their
alternative email address listed on my website was [email protected]
. And I found a 3rd address involved as a next link: [email protected]
showed up as a recipient somewhere along the way.
I have asked a new question, which has been opened to all email experts: Is there a way for retrieving the lost/redirected emails without knowing of them or contacting possible senders?
Thank you very much for your help so far. I don't need a reply to this note. Thanks.