FYI on "What is the Internet?"
RFC 1462 also known as FYI 20

Recipient expansions

Mail trigger To Cc
doc_added_comment housley@vigilsec.com, rfc1462@ietf.org, uswg-chairs@ietf.org
doc_external_resource_change_requested uswg-chairs@ietf.org
doc_state_edited housley@vigilsec.com, rfc1462@ietf.org, uswg-chairs@ietf.org
ipr_posted_on_doc rfc1462@ietf.org ipr-announce@ietf.org, uswg@isc.org