Hi all. For months now I've been receiving dozens of Returned Mail messages and have simply been deleting them. They have come from sources with names like Postmaster, Mail Delivery System, Mailer Demon and Content Filter. I have just purchased a new computer and a copy of NOD 32 and I'm even still getting such messages on that machine Both my new and old computers are attached to a Router via Inthernet cables and my wife has a computer upstairs connected wirelessly. The Router is a Belkin and I think that even this has an anti-virus device on-board I've also had AVG Anti-Virus but still these messages are getting through. Do I need a Firewall? If so, can anyone recommend an accessible one please. Best wishes. Andy ** To leave the list, click on the immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=unsubscribe] ** If this link doesn't work then send a message to: ** access-uk-request@xxxxxxxxxxxxx ** and in the Subject line type ** unsubscribe ** For other list commands such as vacation mode, click on the ** immediately-following link:- ** [mailto:access-uk-request@xxxxxxxxxxxxx?subject=faq] ** or send a message, to ** access-uk-request@xxxxxxxxxxxxx with the Subject:- faq