New Milter coming

Dennis Willson taz at
Tue Nov 28 20:26:09 GMT 2006

I don't use postfix and I have not looked at their interface so 
probably not. I will do some looking around for their interface 
information and see what it would take to make it work there.

On Tue, 28 Nov 2006 15:14:01 -0500
  Gerard Seibert <gerard at> wrote:
>On Tuesday November 28, 2006 at 02:39:24 (PM) Dennis Willson wrote:
>> I have been writing a milter I call milter-spamtrap. It allows an 
>> active sendmail server to also be a spamtrap or honeypot. 
>> You can have email addresses within a domain that is actually used 
>> real users or dedicate entire domains or any combination of both as 
>> your honeypots.
>> Upon receiving an email for an email address defined as a 
>> honeypot/SpamTrap, the milter will log the IP address and optionally 
>> the headers and/or body of the email in either a text file or to a 
>> MySQL database or both. It can cache in memory the IP addresses of 
>> offending servers and from then on block them upon connection.
>> A future enhancement will be to scan the database via a cron job and 
>> create a DNSBL zone file for publishing a blacklist. The saved 
>> headers/body can be used as evidence as to why a server was 
>> blacklisted. Many, many configurable options including Whitelisting 
>> via CIDR block so some servers will never be listed as an offending 
>> server if you want.
>> I believe I will have it ready for Beta (although I am testing/using 
>> it myself right now) sometime next week. I'm 'pre-announceing' so 
>> if there is any interest I will package it for others to use and 
>> it available and I need to do additional documenation if others are 
>> going to use it. If there's no interest I will just use it myself.
>Will this milter be compatible with Postfix. I presently have the
>development version -- 2.4 -- installed. I know that clamav-milter 
>not work correctly which is one of the reasons I abandoned it.

Dennis Willson

taz at

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