Weblog entry #110 for simonw
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#110
Sender Verification for SMTP is a bad idea
Posted by simonw on Wed 22 Nov 2006 at 09:52
It is not big, and it is not clever, don't do it.
Postfix website says all that most people need to know;
http://www.postfix.org/ADDRESS_VERIFICATION_README.html
WARNING
The sender/recipient address verification feature described in this document is suitable only for low-traffic sites. It performs poorly under high load and may cause your site to be blacklisted by some providers. See the "Limitations" section below for details.
Postfix website says all that most people need to know;
http://www.postfix.org/ADDRESS_VERIFICATION_README.html
WARNING
The sender/recipient address verification feature described in this document is suitable only for low-traffic sites. It performs poorly under high load and may cause your site to be blacklisted by some providers. See the "Limitations" section below for details.