How do I stop malicious e-mails?

Somebody my friend used to know from his college days (more than 20 years ago) has started sending him abusive and malicious emails and cc-ed some people from his work and neighborhood. This abusive e-mailer is from another country. How should he tackle...

To Yahoo, Recently I sent out 50-60 emails from my address book. I was told by all of the senders that each email also included a message (which I did not write or authorize) that included a link. Many of the links were to pharmaceutical companies advertising...

I do business with a company and they send me emails quite frequently. The problem is that I never get the emails. If they send the same email to a gmail, live or hotmail, it works fine, but when they send it to yahoo it never shows up. It does not show...

A member wanted to stop the emails for other members of my group. First, I set her email option to "No Emails". That didn't work. Then, I deleted her membership record. That didn't even work. What's up? How can I stop the emails from other...

For the last three months at least one person from my family is receiving emails with my email address that contain links to solicitous and harmful web sites. They are all smart enough not to open them, but the emails keep coming; even after marking...

I am getting mail in my junk inbox, but the Email address says its being sent to someone else. My Email name do not appear in the "sent from" or "To" in the emails I keep receiving. I have tried to block where they are being "...

right after i ask a Qn i will get emails telling me to choose a best answer n i will get emails related to my answers as well. i know how to browse my Qns & Ans, i don't need yahoo! spamming my inbox with crap i already know. i unchecked options...

How can I stop emails in my spam folder that are sexual in nature ie: "Sexy, lonely housewives" or "Penis Enlargment" ? I have visited the links to try to find out how to be removed from the mailing list, but they bring me a web page...

Hi! I have this problem that's been annoying me to the max. I have a iPhone 4S and I have a Yahoo and a Hotmail account running on my phone. How do I stop my hotmail emails being deleted? My emails from Yahoo seem fine and they don't delete but it's...