FreeBSD, Server and OS, Spam Fighting

Blocking Spammers at the Router: IPFWMTAD

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Assuming you’ve followed my spam-fighting adventures, you’ll know that I have a fairly successful installation of Neal Horman’s spamilter running in a FreeBSD jail, and his ipfwmtad daemon running on the jail’s host.  Meaning the ipfw rules being added by ipfwmtad are done on a server different from where spamilter is running. Along with all of that, you’ll recall…

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FreeBSD, Server and OS, Spam Fighting

Spamilter in a Jail

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If you’ve been following my two sub-threads on this blog regarding FreeBSD jails and fighting spam, you know the status: I have a FreeBSD server called joker that has multiple jails on it.  One jail is riddler, and it handles all outbound SMTP connections.  But not inbound.  Further, you know that I have a reasonably complex anti-spam system set…

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Server and OS, Spam Fighting

Spamilter and SpamAssassin Working Together

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In my Killing Spam(mers) entry, I discussed getting both SpamAssassin and Neal Horman’s spamilter installed and working on joker.  Doing so made a significant impact on the amount of spam I was seeing.  However, they were working independently of one another, and what I really wanted was some sort of feedback loop.  Should a message get through spamilter and be…

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Server and OS, Spam Fighting

Killing Spam(mers)

Table Of Content

I’m writing this ex post facto, so me referring to things like, “I did this” actually happened months ago.  I’m just now recounting it.  Note that the assumption with this document is sendmail.  You’re running sendmail as your MTA, right?  No?  Well go back to the beginning and try again.  So.. you’re running sendmail as your MTA, right?  No?…

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