Internet mail scan
PC-cillin can scan email attachments retrieved from a POP3 mail server (supported POP3 mail clients include: Microsoft Outlook 98 and above, Microsoft Outlook Express 4 and above, Netscape Messenger, and Eudora Pro 4.0 and above).
Virus-infected email attachments are now the primary means of virus infection. Due to the ubiquity of email communication, many virus writers are now writing viruses that exploit the vulnerabilities of email clients.