> On May 1, 2018, at 3:31 AM, Jasen Betts via Exim-users <exim-users@exim.org> > wrote: > > RFC5322 makes no concrete restrictions on From header content.
This is of course false. https://tools.ietf.org/html/rfc5322#section-3.6.2 from = "From:" mailbox-list CRLF Which then translates to: mailbox-list = (mailbox *("," mailbox)) / obs-mbox-list mailbox = name-addr / addr-spec name-addr = [display-name] angle-addr angle-addr = [CFWS] "<" addr-spec ">" [CFWS] / obs-angle-addr Which, ignoring the obsolete forms rather requires an addr-spec, which is not a "phrase" and so must not be encoded in structured headers. -- Viktor. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
