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Webased email anti-spam

Hi,

I have several people that check their email accounts online via the web. I have this http://omusicstudios.com/webmail hosted on bluehost.com. It's automatically created and have different options of GUI email functionality between Horde and others.

The workers are complaining about spam. I know bluehost has their google postini anti-spam but I don't wish to pay for it. I was thinking that perhaps I can route my email through some intermediary email servers (Centos Linux) that I can set up from the office which will have something like SpamAssassin on it. I was thinking I can route these emails through this filtering process and then forward to the appropriate email accounts.

Is this even possible? If so, where would I start? I can set up the email servers on a Centos system.

Any help or suggestions is appreciated. =)

Thanks,
Victor

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wolfcamel

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btdownloads7

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Victor Kimura

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Hi wolfcamel,

How much would it cost my clients? What are some good cloud based services that are inexpensive. We have around 20 to 25 emails for this one company.

I also have other clients with similar problems who use Outlook and lots of spam. Yes, I have a VPS so I was thinking of hosting the mail on the VPS.

So SpamAssassin is not as good as Postini. I can't compare to Google for certain. But I was thinking of mitigating the problem to a degree that is acceptable I guess. I think using Postini for one client with 20 to 25 emails mostly using IMAP can be costly.

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Hi btdownloads7,

I'll look at SpamAssassin HAM and SPAM training filters. I thought SpamAssassin had some Bayesian filters which train the filters though.

Is there something better or some additional "plug-in" that I can use in addition to SpamAssassin to reduce the level of spam on a Linux system or some professional grade system perhaps that doesn't cost an arm and a leg?

I'm trying to see some open-sourced solutions that are viable and that are good.

Thanks,
Victor

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btdownloads7

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Victor Kimura

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Hi btdownloads7,

Re. the bayesian filters. I head that Thunderbird (though a client program) uses SpamAssassin and it uses the bayesian filters when one sets the emails as either junk or not junk. I heard it learns it over time.

Google is expensive. One of my clients have 2o to 25 email accounts. I have other clients with 5 to 10. I think the solution would be for me to use a VPS and email server. I think that seems to be the best option.

You mention about coding SpamAssassin for HAM and SPAM filters. Any links that I can learn from? Any other server-side programs that I can use for Linux (open-sourced preferably) and ones that are reputable.

Thanks,
Victor

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btdownloads7

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wolfcamel

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Victor Kimura

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Thank you. Will look into Norton hosted spam.