Suspicious recipient in my outgoing emails when sending to a specific email address from my address book
Hello! I have noticed the following issue: When I send an email to a specific address from my address book it seems that the email is automatically forwarded to an unknown (very suspicious to me) account. I noticed this when I found in my address book an unknown email address which I have deleted immediately but the emails are still being forwarded to that unknown address. So, I made a global search and found thousands of emails that were being sent to that suspicious account. I'm attaching a image with the search. Please help.