<<In all cases, the "From:" field SHOULD NOT contain any mailbox that does not belong to the author(s) of the message.>>
On Tue, Oct 18, 2016 at 1:25 AM, Paul Stead <'paul.st...@zeninternet.co.uk'> wrote: On 17/10/16 23:52, Ruga wrote: https://tools.ietf.org/html/rfc5322#section-3.6.2 from = "From:" mailbox-list CRLF ... https://tools.ietf.org/html/rfc5322#section-3.4 ... ---8<--- mailbox = name-addr / addr-spec name-addr = [display-name] angle-addr display-name = phrase mailbox-list = (mailbox *("," mailbox)) / obs-mbox-list Normally, a mailbox is composed of two parts: (1) an optional display name that indicates the name of the recipient (which can be a person or a system) that could be displayed to the user of a mail application, and (2) an addr-spec address enclosed in angle brackets ("<" and ">"). There is an alternate simple form of a mailbox where the addr-spec address appears alone, without the recipient's name or the angle brackets. The Internet addr-spec address is described in [section 3.4.1](https://tools.ietf.org/html/rfc5322#section-3.4.1). -- Paul Stead Systems Engineer Zen Internet