Date: Wed, 26 Aug 1998 18:15:40 +0100 From: Adam Nealis <adamn@criterion.canon.co.uk> To: pat.groce@state.sd.us Cc: freebsd-questions@FreeBSD.ORG Subject: Re: SPAM HELP Message-ID: <35E442BC.7D296EC3@criterion.canon.co.uk> References: <5D2C95997022D21187350008C7F4CF7902EDFB@ESPR1SRV5>
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pat.groce@state.sd.us wrote: > Our freebsd box is currently being used for redirected spam messages. > Sometimes 6000-7000 messages a day! Any idea on how i can prevent this? > Is there a web page or other resource covering this topic? On > freebsd.org i found some stuff on filtering inbound spam but nothing on > this redirection problem. It sounds like you are being used as a "SPAM relay". You need to prevent unauthorised hosts from doing this. Pay a visit tohttp://www.informatik.uni-kiel.de/%7Eca/email/check.html and read the lot, but you really want the check_relay stuff. Basically you prevent e-mail from being sent via your mail server. Adam. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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