http://www.brettsheffield.com/email/backscatter-spam/ Open Source for Business Blog Tue, 06 Jan 2009 03:36:10 +0000 http://wordpress.org/?v=2.0.5 http://www.brettsheffield.com/email/backscatter-spam/#comment-547 Sun, 11 Nov 2007 15:12:39 +0000 http://www.brettsheffield.com/email/backscatter-spam/#comment-547 [...] Rejecting mail at SMTP time is the “right” way to do things. It reduces bandwidth, memory, cpu and disk usage and eliminates backscatter. In a large ISP the two main costs are power and bandwidth, and so there are real cost savings to be made by enforcing RFCs at SMTP time. It’s even good for the environment. By ruthlessly checking for a postmaster address I know that while I sit at my keyboard here, I’m doing my bit for the polar ice caps. [...] […] Rejecting mail at SMTP time is the “right” way to do things. It reduces bandwidth, memory, cpu and disk usage and eliminates backscatter. In a large ISP the two main costs are power and bandwidth, and so there are real cost savings to be made by enforcing RFCs at SMTP time. It’s even good for the environment. By ruthlessly checking for a postmaster address I know that while I sit at my keyboard here, I’m doing my bit for the polar ice caps. […]

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