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SPAM filtering

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What do you do to help filter SPAM from your corporate mail. I have a Sonic firewall and an Exchange 2000 server. I have been using the Exchange server filter manually adding domains and IP's that we want blocked and some manual filtering in the Sonic wall for IP's that are reoccuring frequently but the lists are getting VERY long and it is time consuming adding stuff daily by hand all the time.
Please let me know some good products, services or techniques to reduce our SPAM.

Please be specific with websites or instruction. All helpful suggestion will get points

7 replies

by cactus pete

Just in case you were having some difficulties in the last posts concerning this topic, I'll post again.

I am now using Corvigo's Mailgate appliance in front of the exchange server. It took about 15 minutes to set up, and they were on the line with me during the whole install. You can see their product at http://www.corvigo.com and see for yourself. They gave us a 30 day trial before we agreed to purchase it, too.

The mailgate filters all the mail going though to the Exchange server, and keeps tabs on each user's mail. It uses artificial intelligence to determine if the mail is likely to be junk or not. If it's junk, the message is quarentined and the users get notifications or summaries if there were junk messages, so they can opt to release the message if it was a false read.

It's fairly intuitive to the end user, so there was little education we had to extend to the clients.

There's plenty more, but you can see for yourself. We're happy with our purchase.

by ashisharma

Try GFI Mail Essentials. It is easy to configure and use. It also have facility to add disclaimers to your outgoing messages. Routing of POP3 accounts to exchange mailboxes and many more.
I am using this from last 2 years and i love to work with it.

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