Check the advertisers links on the inbox ads
Do you guys test click advertisements you place in the inbox lists? Some are malware or ransomware that hijack my browser. Clicked on one by accident and immediately froze my browser asking for money. I was able to get out and now can't find it to report it. If this happens again I will be switching to a different email, which will be a hassle for me, but probably a don't care for you. Not a good experience.
Found the add - it is the "Harper Smith" add
5th
ranked