Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
Exchange does have some archiving options built in. Personaly I've used GFI's mail archiver but this seems to be more for use in a business enviroment.
Yes, Exchange has the built in functionality of pst files, and it is atrocious.
Organizationally, I've just started using Symantec's Enterprise Vault. It is a great product, but it does require a delicate hand and a calculated approach.
Once you have a good implementation, it runs very well.