Outlook 2010 Email Encryption and Digitally Signed Certificates

Hello Experts!

I'm currently digging into ways to make our email more secure. I was trying to find information on what I would need to do this with email encryption and digitally signed certificates in Outlook. I also was wondering if it even makes sense or really protects us from unwanted spam and malware. Could anyone explain how I would go about this or what I need to accomplish this setup? Am I able to create these encryption certificates or digitally signed certificates in Exchange or from my SBS 2011 or do I need to go to an external source for them? Also, does this mean that everyone I send an email to would need my certificate?

Thank you in advance,

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Nick RhodeIT DirectorCommented:
You could use a self-signed cert from SBS2011 but I never recommend self-signed certificates and instead purchase certificates from 3rd party.  I would say for ranking wise Comodo would be a good one to go with but they are pricey but awsome.  If your looking for a more affordable cert then you can pick up a go-daddy cert for much less.

No everyone does not need your cert it is only verified.

Nice little article on certs and spam:  http://blog.whichssl.com/2013/03/how-ssl-certificates-defend-you-from-spammers/
Steven HarrisPresidentCommented:
I also was wondering if it even makes sense or really protects us from unwanted spam and malware.

DSC's will not protect you from incoming emails, they are designed to secure your outbound transmissions.
BJDalfol9Author Commented:
Thanks guys.......So I keep reading how encrypting emails will protect us from spam but i don't see how. Does anyone know anything about how it protects against spam?  I mean I'm still going to be getting emails from people who don't encrypt them so therefore I am still going to get spam, correct?
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Mark GalvinManaging Director / Principal ConsultantCommented:

Using certs will encrypt the traffic between Outlook and the Exchange server.

It will not stop spam. You need to use something that filters the spam for you. Something like Forefront by MS or a third party tool like Google Apps. Mimecast etc.

As an example, I get my clients to use Office 365, for the most part. One of the clients has a user base of 75 people. Using the provided Forefront service within their Office 365 package, Forefront blocks approx 28,000 spams emails A DAY. Ana all Outlook clients HAVE to use the digi certs provided by Office 365. This secures the traffic between the UK site and the Office 365 servers in Dublin and Amsterdam. Doesn't stop Spam at all.

And even then some spam gets through because the spam robots are getting too clever.

Its a continuing battle/



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Nick RhodeIT DirectorCommented:
In all honesty your always going to get some form of spam 1 way or another.  What I do for spam is use an external mail filter like from MXtoobox, Mailmax, Postini, etc.
BJDalfol9Author Commented:
Thanks everyone!!
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