Hi I am running a fedora 10 desktop. when i send an email using evolution the message was not sent but returns a error message: "Error while performing operation. DATA command failed: Error: 550 Viagra SPAM - Hi in Subject" and the message did not have an attachment just plain words. what might have gone wrong for i have been using this for sometime without a problem. or what security measures should be in place to remove this viagra spam. Am I infected by virus on this fedora, all my updates are up to date.