How to defeat address harvesting; like this..???

[Drew Marshall]

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Jim West wrote:

 In /etc/mail/sendmail.mc:

define(`confBAD_RCPT_THROTTLE',`1')dnl

This will start throttling those connections.

Mike

    

 How would one go about doing the same thing for Postfix ?
  

Postfix comes with a similar feature turned on by default. You can tune
to your system by adjusting (I quote):

smtpd_error_sleep_time (default: 1s)

      With Postfix 2.1 and later: the SMTP server response delay after a
      client has made more than $smtpd_soft_error_limit errors, and fewer
      than $smtpd_hard_error_limit errors, without delivering mail.

You can also tweak the two error limits to taste also.

HTH

Drew

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