Read this:
To help avoid receiving unwanted messages (spam) in your
regular e-mail account, you may not want to include your
regular e-mail address when you post a question or reply
to a post in a discussion group.
Use a modified email address
Use a different version of your e-mail address that
others will understand, but that spam tools can't
automatically pick up and add to their mailing list
For example, if your actual e-mail address
is "(e-mail address removed)", use "emailname(removethis)
@account.com" as your modified e-mail address. In this
case, the spam tools will send mail to an invalid e-mail
address, and others will know to exclude
the "(removethis)" when they send you e-mail.
When you post a question or reply to a discussion group,
just enter your modified e-mail address in the
appropriate box.
Use a secondary e-mail acccount
Set up or use an e-mail account, such as a Hotmail
account, that is separate from your primary account for
posting to discussion groups. When you post a question or
reply to a discussion group, use your Hotmail account as
your e-mail address.
