Re: Your header "To: undisclosed-recipients:;" is RFC 822 compliant

[A. Schulze]

Am 27.10.2017 um 07:15 schrieb @lbutlr:
> RFC 822 is obsolete, replaced by RFC 2822.
... which is obsoleted by RFC 5322 and updated some other RFCs
see https://tools.ietf.org/html/rfc5322