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2 posts

Wannabe Geek

#28876 15-Dec-2008 09:28
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Usually we've got heaps of spam daily say about 3,000 everyday including those have been filtered by free anti-spam software. We're planning to upgrade our system to Exchange2k7 but not sure if it's good enough handing spam. New anti-spam filter is quite costly that we can't afford (even though we've got charity license but most of the them are cost more than $3,000 per year).

Is there anyone knows if Exchange2k7 is good enough for spam or any cheaper anti-spam solution recommended?

Thanks heaps.

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3343 posts

Uber Geek


  #184209 15-Dec-2008 11:22
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3,000 a day!
How many users do you have?

We use Exchange 2003 and Outlook 2007 and I haven't had any Spam make it into my inbox for a long time.
Usually end up in Outlook's Junk Mail folder.


2 posts

Wannabe Geek

  #184216 15-Dec-2008 11:52
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about 100 users. Exchange2k in current. thanks.


309 posts

Ultimate Geek

  #184230 15-Dec-2008 12:42
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The spam filter in Exchange 2007 is pretty good. Takes a bit of tuning to make sure you don't block valid email.

Has taken my daily spam count from several hundred down to maybe 1 or 2 a week.


4062 posts

Uber Geek


  #184414 15-Dec-2008 23:20
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mailmarshal does a pretty good job of blocking our spam.  there are also several other options out there, including hosted/outsourced options

2416 posts

Uber Geek


  #185760 23-Dec-2008 01:12
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Regs: mailmarshal does a pretty good job of blocking our spam.  there are also several other options out there, including hosted/outsourced options

yeah SMTP filtering is painless via a third party. There are a few who offer such a solution in NZ, you just point your mail records to them first, they scrub the email and forward it back onto your mail server.

6639 posts

Uber Geek

Lifetime subscriber

  #185771 23-Dec-2008 08:10
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+1 Mailmarshal SMTP... blocks pretty much everything, plus gives you a nice UI to manage things from, and search for/release incorrectly blocked emails.  It's well worth it.

BDFL - Memuneh
68843 posts

Uber Geek

Lifetime subscriber

#185774 23-Dec-2008 08:12
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You get 3,000 a day for 100 users? Not bad then. I get about 500 a day on my account alone. Having said that I don't use any spam filter other than the Exchange Server IMF and it does a good job of filtering the whole thing - all of those go into the Junk folder and only one or two false positive a day.

Of course you need to fine tune, etc as explaine - or go for an external (paid) service...



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1 post

Wannabe Geek

  #191176 21-Jan-2009 23:15
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well we use Exchange 2003 and have had no problems with it whatsoever.

i guess an important factor to think about is to check that the Exchange 2003 SPAM filters are configured correctly.

we have a very interesting post on our blog at explaining how the Exchange 2003 SPAM filters work.

if you are looking for a third party application to go hand in hand with Exchange, if i may i would highly recommend GFI MailEssentials which supports Exchange 2000/2003/2007 and also works with Exchange 5.5 and Lotus Domino.

more info about this can be found here:

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