Sort Tasks in Outlook by E-mail address; not by Name

[FBurkhardt]

Hello Community,
I'm not quite sure why I can group my tasks in Outlook by recipient name, but not simply by my desired e-mail address. If I sort it by my name, the result is pure chaos.
Can someone please help me to group my tasks/flagged e-mails in the task area simply by e-mail address?

Thanks in advance
Ferdinand

[#2]

Hello Community,

I'm not quite sure if my question was not asked well enough, or if there is really no solution to this problem. Can someone please give me a short feedback on this?

Thanks in advance
Ferdinand