Looking for Linux based anti-spam system

From: bpn (bpn_at_nomailforme.com)
Date: 10/28/04 

Date: Thu, 28 Oct 2004 14:37:15 -0500

I hope to try to explain what I am looking for. Our mail server is hosted
by an outside ISP, so we have no control over the mail server itself.

I want the mail to flow from the mail server to the anti-spam system, then
to the user.

Mail Server --->Linux Anti-Spam --->User

What I am looking for is a Linux based system that sits between the mail
server and the users. A system that would get the mail from the mail
server, check if for spam, and then hold it until the user downloaded it
from the anti-spam system. I'm not sure if the correct terminology is
"gateway" or "relay" or what.

I know there are commercial products available, but am trying to go
open-source.

Any info is appreciated.

Relevant Pages

  • Re: open proxy
    ... > as our mail server in a w2k server environment. ... > Open Proxy Database. ... there's no proxy list or anti-spam system in existance (that I ... SurfControl E-mail Filter puts the brakes on spam, ...
    (Security-Basics)
  • Re: OT: fighting rbls
    ... > I only use my ISP's mail server for sites that I cannot reach directly. ... > One of the disadvantages of using the ISP's server is a loss of control; ... If remote site is down, and you know it will be down ... Something no ISP ...
    (Fedora)
  • Re: MX and A records?
    ... to answer your questions about the ISP hosting the mail, ... could be getting the mail or the clients could POP to the ISP. ... an A records, CNAME, MX records are all different types of DNS records. ... >> mail server or firewall. ...
    (microsoft.public.exchange.setup)
  • Re: URGENT - No incoming mail
    ... Looks like your an open relay, if your isp queues your emails, just block ... also if you use smarthost then you might be blocked by your isp, ... >> I don't believe that there is any more risk in sending via DNS instead of ... >> of an ISP's mail server being blocked than your server. ...
    (microsoft.public.exchange.admin)
  • Re: Very new to SBS - can I send emails without involving ISP?
    ... class ISP even though they say they are and charge as they do. ... Initially I would check to see if your domain hoster provides SMTP ... This is required EVEN if you send via DNS, it may work initially but BT will ... outbound email was sent via BT's mail server. ...
    (microsoft.public.windows.server.sbs)