Email marketing is a challenge because one man's treasure is another man's spam. So it's important to be very careful. Leo says that having people "double opt-in" is the best policy because it gives users twice the options to ask for newsletter updates.
Michael is frustrated because he has been blocked by Yahoo for sending a lot of email to his friends. Leo says that this is because he reached the daily sending limit. This is a policy to prevent spammers from using Yahoo. Yahoo's Help has more about daily sending limits here: http://help.yahoo.com/kb/index?page=content&y=PROD_MAIL_ML&locale=en_US&id=SLN3353.
Doug keeps posting to Craigslist and he keeps getting flagged. Leo says that if his posts are being flagged, then someone either doesn't like him or he's putting it on the wrong section. It may also be that Doug has been put on a black list for spamming. There's no real way to overturn that.
Ways around it is to use a VPN or Tore, which will hide Doug's IP address. Craigslist has an auto robot that searches posts for spam and kills them, but Craigslist doesn't say how to avoid it.
Gary got a spam email message and now it's been forwarded to everyone on his contact list. He got failure notices from the message being sent to addresses that didn't exist. Leo says that it's not unusual to get failure notices where he has no control. Spammers can "spoof" the return address by using another user's email address as the return address. Nothing he can do about that, but the good news is that they'll soon move on to another email.
Mary Jane got a new Samsung Galaxy Note II and wants to know if she needs a spam filter for her phone. Leo says that it makes no sense to have a filter on the phone since filters need to be done at the source, from her mail provider. Also, most people have moved to web based email like Gmail with good filters that can learn, that spam is hardly an issue anymore. It benefits from a collarborative process.
Chris clicked on a link in email and he ended up getting one window open after another. This is called a "porn storm." Leo says if he can close the browser, that should stop it. Now Chris is worried about hidden files that may be in his cache from this. Leo says that's easily fixable. The browser has a cache and it can be cleared out. In Google Chrome, select "Clear Browsing Data", and that'll wipe out everything. If he uses Chrome in "Incognito" mode, no files will be saved when he browses online.