Some antivirus programs, such as AVG,
McAfee, and Norton, offer what looks like a helpful, or even essential,
feature:
scanning incoming messages
for viruses when you run an E-mail program such as Outlook
Express. However, that feature
isn't
necessary, and, under some circumstances, it can actually cause your
E-mail program to lose messages that you've received. A
properly configured, up-to-date antivirus program protects you from
viruses in E-mail messages even with E-mail scanning turned off., and I
recommend turning off E-mail scanning to avoid possible problems.
For more information, please see this
Norton
web page or this
news
group article.
Viruses typically come from attachments to E-mail messages.
Never open an attachment that you weren't
expecting, even if it appears to come from someone you know. Even
if you think that an attachment is legitimate, the safest procedure is
to save it to disk and manually scan it with your antivirus program
before opening it.