Re: Losing My SPAM Battle
- On Tuesday 01 April 2008, Carlos Williams wrote:
> I am running Postfix 2.3 as a corporate email server. I love running PostfixIf you are worried they will force you into exchange or some other pay for
> 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?
product and you are also worried about breaking upgrading what you have, you
might look at an external email filter like Postini or AppRiver. I have used
them both, they are not perfect, but they require way less time from the
administrator. Companies like this usually have a wev interface to quarantine
and release, also the prices are usually fiarly cheap (AppRiver is 75 cents a
mailbox per month), and they have a team dedicated to getting rid of spam.
Just an idea.
> 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!
> This EMAIL was sent from a Linux (virus free) environment...
EYEMG.com LLC - Interactive Media Group
190 North Union St.
Akron, Oh 44304
Office: 330-434-7873 ext 214
- 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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