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,