How to control spam email on outlook 2007?

Hello Everyone,

We have exchange 2007 with latest service pack. recently we have one user accidentally opened up a spam email that contain viruses and the end result is it send out an bogus email to each of the user's contacts. We've tried completely cleaned out that pc, reformat the hard drive.  Ever since the incident, we have a lot of junk and spam emails getting through our exchange server. Our server use Panda Cloud for exchange to filter spam. We want to know if there is any method or software out there that we can use to block that.
lappladminAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
In situaitons like this you should also have your Spam appliance scan email going out the the NET as well so that you do not get blacklisted. To mitigate something like this internally what you could do it create a transport rule which will drop messages that have a specific subject line or words in the body.

Ultimately you need to make sure that your spam appliance or Hosting provider is scanning email going Outbound as well. Also having thresholds (throttling) on the amount of mail that can go out at one time by an individual user.

Will.

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lappladminAuthor Commented:
Will,

Rules such as subject or words in the body are random and we've put many possibilities but that doesn't seem to help us at all. We were thinking about purchasing a Spam firewall appliance such as Baracuda Network or others...not sure if that's the solution.
Will SzymkowskiSenior Solution ArchitectCommented:
I would agree. Creating a transport rule to drop or block messages would be a interim fix. For true spam filtering you need to purchase an appliance that will sit on your preimeter network and scan the mail before it enters the domain.

Will.
lappladminAuthor Commented:
I've requested that this question be deleted for the following reason:

not a good question
Will SzymkowskiSenior Solution ArchitectCommented:
I have provided comments which have illustrated solutions to accomplish what the user has asked. Please accept the appropriate answer.

Will.
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