General discussion


Spam gateways?

By johnnywatt ·
What are you guys using to block spam from hitting the Exchange box? Using a particular software and method?

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Not using exchange...

by house In reply to Spam gateways?

We use the MailDaemon software from Alt-N technologies. They offer a proprietary spam filter that is somewhat intelligent. It takes a little bit of manual work once in a while, but other than that, it is pretty self-sufficient.

Sorry, I guess that didn't really answer your question. I'm just offering an alternative and opening up the discussion a little bit.


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Same, not using Exchange.

by tbragsda In reply to Spam gateways?

But for others I have been singing the praises of GWGardian for GroupWise. For anyone out there with GW looking check out Messaging Architecs. Im also using their GWAnywhere, GWArchive. Great all.

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by Choppit In reply to Spam gateways?

I'm using ASSP running on 350Mhz RH9 box

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by johnnywatt In reply to ASSP

Working okay for you?

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by Choppit In reply to Assp

I've been really impressed with it. It took around 2 weeks to prime the database but after that our spam problem practically disappeared. I'm not sure how well it scales though as it's only processing around 700 mails a day (75% spam).

One of the features I like about this is it's ability to reject mail without having to accept the whole message for scanning. As an added bonus this also rejects around 90% of our email borne viruses, presumably because they have spam like characteristics.

I'd say give it a try, running in test mode to see how it fares.

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Filters can cause grief

by house In reply to

We have an address spoofing detection mechanism that works wonderful, but it acts up with our clients who are going through a proxy (usually without their knowledge). It is usually spyware related on our client's end, so it extends such tech calls a little bit further than we'd like.

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by Choppit In reply to Filters can cause grief

Are you running 1.1.0?

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Not using ASSP

by house In reply to

I'm simply commenting on spam filtering techniques in general. We use the Mail Daemon from Alt-N. One of the latest additions was an intelligent spoofing detection feature that is bringing about more support calls than it's worth.

We've had an intelligent points based system for a while, but this additional method queries the source of the mail in order to authenticate (term used loosely) the piece of mail. We've come to the relization that any of our clients who are infected with spyware scam software, such as "download accelerators" and proxy based security tools, are being rejected. Keep in mind that we are an ISP, so you can just imagine the crap that our clients are infected with.

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by Cactus Pete In reply to Spam gateways?

We have an MMS gateway i nthe DMZ, then the MailGate appliance after it.

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by Roger99a In reply to Spam gateways?

I use Syamntec's SMTP Gateway software. It's not great at filtering spam though. It relies on DNSBL's, keywords and return addresses for blocking. I had to set up an internal DNSBL to make it really effective and it ate a large portion of my life. It is very good at stopping viruses and blocking attachments. The AV on the mail server goes for months without a positive detection.

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