OpenPGP SMTP headers

[Atom 'Smasher']

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

would it be within the scope of RFC 2440 to recommend SMTP headers related
to pgp keys? such as:

X-OpenPGP-KeyID: 0xB88D52E4D9F57808 (4096-RSA)
X-OpenPGP-Fingerprint: 762A 3B98 A3C3 96C9 C6B7 582A B88D 52E4 D9F5 7808
X-OpenPGP-URL: http://smasher.suspicious.org/pgp.txt

etc...


        ...atom

 _________________________________________
 PGP key - http://atom.smasher.org/pgp.txt
 762A 3B98 A3C3 96C9 C6B7 582A B88D 52E4 D9F5 7808
 -------------------------------------------------

	"We must learn to live together as brothers
	 or perish together as fools."
		-- Martin Luther King, Jr.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (FreeBSD)
Comment: What is this gibberish?  -  http://atom.smasher.org/links/#digital_signatures

iEYEARECAAYFAkCqaiQACgkQnCgLvz19QePURQCfWuXI3/JW1WzP6qYsJ1TMkHw4
Nx0Anibr8nfCPyGBSjDfhV1mSzv4kfi8
=Lm9Z
-----END PGP SIGNATURE-----