Seems that WWW 7.03 is triggering some anti-virus filters. The url spoofing example in the message is the cause and to make things worse the warning from the AV software talks about viruses and attachments. Grrr.

In short:
<UL><LI>This is NO virus, worm or nastie in that issue, or any other.
<LI>There is NO attachment of any sort to WWW 7.03, let alone an infected attachment.
<LI>Your email subscription has not been stolen or misused.
<LI>There is NO cause for concern.[/list]
Here