This is the best use for SPF. If you can control or specify what machines can send mail for a domain, then you can set an SPF record in DNS and use SPF FAIL to block forged mail.
Darin. ----- Original Message ----- From: "Chuck Schick" <[EMAIL PROTECTED]> To: "Declude. JunkMail" <[email protected]> Sent: Friday, July 21, 2006 6:18 PM Subject: [Declude.JunkMail] Forged from local domains. I am starting to see a lot of spam email that uses the recipient domain in the from address. So if the mail is going to [EMAIL PROTECTED] the from address may be something like [EMAIL PROTECTED] Is there any declude test to see if the sender is valid for local domains??? I thought I remembered something about the spammers using a wildcard to just fill in the recipient domain for the from address - seems like there should be a method to block this. Chuck Schick Warp 8, Inc. (303)-421-5140 www.warp8.com --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
