Convert smtp address

Hello Dear Colleagues

When I receive an external mail, and some of my collegues in cc have a strange internet address e.g. r432@xx.it I have difficult to understand who is really the person

The only way to understand it is by clicking with right mouse, “Show name details” and see It in the names.nsf

The problem is that names is in other country and It takes about one minut to open it

Is there any way to show in the cc the complete name and not internet address?

Thanks for your attention and best regards