Returns Name of the sender, if found.

A String value.  

object.FromName

The FromName Property syntax has these parts:

FromName property will read sender of the message (through From property), and try to return only name, without email address.

Typically, full sender header may look like this:

"Technical Support" <techsupport@weonlydo.com> 

in which case FromName would return 'Technical Support' expression, without any quotes. To retrieve email, you can use FromEmail property.