Use headers to show what the mail will look like in your inbox

Message.to / from will only show the email parts, and not the name, if you've added one. Feels a bit "nicer" to show this in there, because there's some cognitive overhead of going - where's the name bits?

i.e.,
message.to = 'Bob Ross <bob@bobross.com>'

message.to => 'bob@bobross.com'
message.header['To'] => 'Bob Ross <bob@bobross.com>'