Header Field Name,Template,Protocol,Status,Trace,Reference
Apparently-To,prov/apparently-to,mail,,,[RFC2076]
Author,,mail,,,[RFC9057]
CFBL-Address,,mail,,,[RFC9477]
CFBL-Feedback-ID,,mail,,,[RFC9477]
Delivered-To,,mail,,,[RFC9228]
EDIINT-Features,,mail,,,[RFC6017]
Eesst-Version,,mail,,,[RFC7681]
Errors-To,prov/errors-to,mail,,,[RFC2076]
Face,prov/face,mail,,,[https://quimby.gnus.org/circus/face]
Face,prov/face,netnews,,,[https://quimby.gnus.org/circus/face]
Form-Sub,,mail,,,[draft-levine-mailbomb-header-00]
Jabber-ID,prov/jabber-id,mail,,,[RFC7259]
Jabber-ID,prov/jabber-id,netnews,,,[RFC7259]
MMHS-Authorizing-Users,,mail,,,[RFC7912]
Privicon,,mail,,,[draft-koenig-privicons-01]
SIO-Label,,mail,,,[RFC7444]
SIO-Label-History,,mail,,,[RFC7444]
Wrong-Recipient,prov/wrong-recipient,mail,,,[draft-ietf-mailmaint-wrong-recipient-00]
X-Archived-At,prov/x-archived-at,mail,deprecated,,[RFC5064]
X-Archived-At,prov/x-archived-at,netnews,deprecated,,[RFC5064]
X-Face,prov/x-face,mail,,,[https://purl.org/x-face-spec]
X-Face,prov/x-face,netnews,,,[https://purl.org/x-face-spec]
X-Mittente,,mail,,,[RFC6109]
X-PGP-Sig,prov/x-pgp-sig,netnews,,,[ftp://ftp.isc.org/pub/pgpcontrol/FORMAT][https://ftp.isc.org/pub/pgpcontrol/FORMAT]
X-Ricevuta,,mail,,,[RFC6109]
X-Riferimento-Message-ID,,mail,,,[RFC6109]
X-TipoRicevuta,,mail,,,[RFC6109]
X-Trasporto,,mail,,,[RFC6109]
X-VerificaSicurezza,,mail,,,[RFC6109]