I'm stuck with Exchange as well. I went with a purchased solution from Symantec that includes the Brightmail plugin to their Mail Security product for AntiSpam/AntiVirus. I have to say it works quite well. The amount of spam in our inboxes has gone from 100 a day for some people to less than 2 per week - for each employee. The CEO was getting over 300 per day... she now gets about less than 1 every other week. The results are mixed in that sense, but I'd say that's about 98% give or take.
Now if you want open source... I'm sure others in the thread will suggest the popular postfix + spamassassin + clamAV + postgrey (new greylisting stuff). There have been various discussions on these mail gateways over the last couple years on list so you may be able to google search using "site:trilug.org" and find some of that information. The greylisting stuff is new. People are apparently raving about it... spamassassin simply isn't cutting it by itself anymore it seems. I know at home I'm getting 30 spams a day right now that get through. It totally sucks. I have instructions for implementing greylisting and will probably do so this weekend. good luck on your choice! BTW, another reason I went for a paid solution... someone else is responsible/accountable if the product fails to deliver!! :) Yes I chose the product, but when you pay for something (in the CEO's eyes) you have greater accountability for it to work properly. The SPAM issue was too huge here (b/c of their previous admins never teaching them anything so they used their email addresses EVERYWHERE on the Internet) ... so I had to make sure that solution worked (and I didn't have extra hardware for the SMTP Gateway either). David McD On 12/21/05, Chad Thomsen <[EMAIL PROTECTED]> wrote: > Am going to put an Exchange server in for email and I have no choice on > that. I do however have a choice in Spam/Virus/HTTP filtering for a gateway > solution. Want to filter spam, viruses, spyware and possibley stop users > from visiting black listed web sites that are against company policy. > > I am looking at all types of products form Symantec, Barracuda, Iron Port, > Trend etc etc. I thought I might even build myself an opensource one. > Question for you all is there a good open source solution? > > I am open to any suggestions. This is for a corporate environment with > about 250 users. > > Thanks! > > Chad > -- > TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug > TriLUG Organizational FAQ : http://trilug.org/faq/ > TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ > -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/
