Losing My SPAM Battle
- I am running Postfix 2.3 as a corporate email server. I love running Postfix and don't want to switch to something else however SPAM is getting way out of control on my companies domain. Everyone is complaining about SPAM and I have to find a solution to this. Right now I have the following installed:
- CentOS 5.1 = OS
- Postfix 2.3 = MTA
- Dovecot 1.0 = MDA
- Amavisd-new = Not Configured
- Spamassassin = Not Configured
- ClamAV = Not Configured
- Procmail = Not Configured
My problem is that I am being suggested online to have ClamAV and Spamassassin run via Amavisd-new. I have never done this before and I am very scared I will end up losing control of this email server in place for Exchange or something like that. I want to do everything in my power to keep Postfix running here but I need to find a way to integrate SPAM scoring and SPAM filtering along side with the MTA / MDA.
Does anyone have a complete guide or anything they recommend? I have read Postfix.org and there are so many different manuals and all of them seem to do things their own way. I just want one that works. At this point the company I work for would even wire a consultant to come out to Orlando and help us get this running.
Thanks for any assistance!
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- On Fri April 4 2008 20:02:50 Bill Cole wrote:
> >Although I don't intentionally use Comcast's nameservers, it's quiteYou are of course correct, and there was even a clue in my post: I
> >possible that they have transparently proxied DNS traffic.
> That would be a spectacularly evil thing to do.
> It seems within the realm of possibility (and far less evil) that
> Spamhaus has filtered all of Comcast's residential space from being
> able to query their servers, given the prevalence of zombies in that
fixed my issue by forwarding queries to my own remote servers. One of
these is through a VPN, but the others are reached using port 53, and
all are tested, answering my queries from there.
I am, however, familiar with at least one ISP that redirects DNS
traffic to its own servers: HughesNet home satellite. I bet it was a
matter of incompetence rather than malice; it's difficult to make a
laggy satellite connection work like ADSL or cable.
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