Last Modified
  2015-07-22 02:29:34 +0000
Requires
  - mail/fields/common/common_address

## Description

4.4.3. REPLY-TO / RESENT-REPLY-TO

    Note:  The "Return-Path" field is added by the mail  transport
           service,  at the time of final deliver.  It is intended
           to identify a path back to the orginator  of  the  mes-
           sage.   The  "Reply-To"  field  is added by the message
           originator and is intended to direct replies.

trace = [return]

    1*received

return = "Return-Path:" path CRLF

path = ([CFWS] "<" ([CFWS] / addr-spec) ">" [CFWS]) /

    obs-path

received = "Received:" name-val-list ";" date-time CRLF

name-val-list = [CFWS] [name-val-pair *(CFWS name-val-pair)]

name-val-pair = item-name CFWS item-value

item-name = ALPHA *(["-"] (ALPHA / DIGIT))

item-value = 1*angle-addr / addr-spec /

    atom / domain / msg-id