I have a new MBP and I have been able to set up my POP mail account successfully in Mail and sent a message OK. But now I am worried and I have a few questions. My experience is with Windows and Outlook Express and I am new to Macs. I hear that Macs are not very succeptible to viruses on the internet, but what about emails with viruses, etc.? It seems to me that without an antivirus software, Macs should be just as vulnerable to infected emails as Windows is. Do I need to install an antivirus on my MBP if I use Mail? Also, in Outlook Express, I am able to set up mail rules such as deleting mail from the server if it contains a particular subject or author word, etc.. This is very helpful in avoiding receiving repetitive junk mail that I know I don't want. Can I set up similar filters with Mail? Another useful option in Outlook Express is that I can set my view panes so that incoming messages don't automatically preview in the preview pane. All I see is the list of new mail and I have to double click on one to have it open up in the preview pane. Some emails can infect the computer just by opening them up rather than opening an attachment, so this option prevents an email that arrives from automatically opening and showing in the preview pane. Is this an option in Mail? Finally, can I set up my news accounts for usenet groups in Mail like I can in Outlook Express? I would greatly appreciate any advice as I am afraid to use Mail until I know what might happen. Thanks a lot for any advice.