I’ve been trying to sort my mail into groups by Contact so that I can see how much communication I have had with specific people over a course of time.

However, when I set my view to sort and group by the From field, it still creates multiple groups per contact such as:

• First Last
• ‘First Last’
• First Last <name@domain.com>
• name@domain.com

And sometimes even various other groups. This is anything but useful to me.

How can I really sort my emails from a single contact together?