Is there a way to block senders in mac mail? The last few days I have been recieiving unwanted mail in my inbox on my mac account. This is the first time, and I noticed it occured after I used the new beta mac.com itools e-mail on a PC this last week. Can I also get another mac.com email account if need be? I would like to keep my present account, but large unsolicited emails are becoming a problem. Thanks in advance.