Is there a standard format for email addresses in MIME messages?

Question

When I get an email, there is a header From: in the actual MIME message that specifies who the sender of the email is.

I notice that the format of that particular header is sometimes:

From: [email protected]

or

From: Human Readable Name <[email protected]>

Are these the only ways that standard clients format the From: header? Or are there others I should be aware of?

Answer 1

They are documented in RFC 5321 and RFC 5322.

And you may also be interested in RFC 2047.