6. IANA 考虑事项

本文档更新了 [RFC4021] 中出现的、引用了 [RFC2822] 中定义的注册. IANA 已按照 [RFC3864] 中规定的程序, 用以下头部字段更新了 Permanent Message Header Field Repository.

Header field name:  Date
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.1)

Header field name:  From
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.2)

Header field name:  Sender
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.2)

Header field name:  Reply-To
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.2)

Header field name:  To
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.3)

Header field name:  Cc
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.3)

Header field name:  Bcc
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.3)

Header field name:  Message-ID
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.4)

Header field name:  In-Reply-To
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.4)

Header field name:  References
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.4)

Header field name:  Subject
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.5)

Header field name:  Comments
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.5)

Header field name:  Keywords
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.5)

Header field name:  Resent-Date
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Resent-From
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Resent-Sender
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Resent-To
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Resent-Cc
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Resent-Bcc
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Resent-Reply-To
Applicable protocol:  Mail
Status:  obsolete
Author/Change controller:  IETF
Specification document(s):  This document (section 4.5.6)

Header field name:  Resent-Message-ID
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.6)

Header field name:  Return-Path
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.7)

Header field name:  Received
Applicable protocol:  Mail
Status:  standard
Author/Change controller:  IETF
Specification document(s):  This document (section 3.6.7)
Related information:  [RFC5321]