- [Internal:4111] - Added a configurable option that enables or disables the link validation introduced in 7.2.2.  If enabled, whenever a tracked website link is clicked, we check if that link actually exists in the email design.  If it does not we invalidate the incoming request to protect against phishing attacks.

- [Internal:4123] - Added a configurable option for groups to de-dupe the main group count where contacts exist in the exclusions which match the email address.  This is mainly for customers that have lots of duplicate contacts based on the email address and uses group exclusions.  When enabled the exclusions will find all matching email address duplicate contacts too.