Educause Security Discussion mailing list archives
Re: Dealing with s-p-a-m "backscatter"
From: Ian McDonald <iam () ST-ANDREWS AC UK>
Date: Wed, 16 Jul 2008 23:06:20 +0100
Has anyone come up with a more creative way to block the spam backscatter while allowing the legit non-delivery SMTP notifications to come through?
MailScanner can add a watermark to each outgoing message (derived from a secret you configure), so that they appear in legitimate notifications. It can hence bin non-legit ones inbound :) . http://www.mailscanner.info/MailScanner.conf.index.html#Add%20Watermark I presume similar functionality is available in other packages, but I noticed it in MailScanner. HTH -- ian
Current thread:
- Dealing with s-p-a-m "backscatter" Jeff Giacobbe (Jul 15)
- <Possible follow-ups>
- Re: Dealing with s-p-a-m "backscatter" Wes Young (Jul 16)
- Re: Dealing with s-p-a-m "backscatter" Jesse Thompson (Jul 16)
- Re: Dealing with s-p-a-m "backscatter" Ian McDonald (Jul 16)
- Re: Dealing with s-p-a-m "backscatter" Russell Fulton (Jul 16)
- Re: Dealing with s-p-a-m "backscatter" Jesse Thompson (Jul 21)