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Subject: Re: [9front] upas/smtp -h $fqdn not used for HELO dialogue
From: arisawa <arisawa@ar.aichi-u.ac.jp>
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Date: Thu, 12 Nov 2015 12:47:59 +0900
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hello,

smtp option =E2=80=9C-h=E2=80=9D is not for HELO host.

hostdomain is used for FROM address, which is used if the recipient is =
non-existent.
FROM address may be different from HELO host.
while HELO host is the system address of the smtp server.

look rfc2821 in detail



> 2015/11/12 10:17=E3=80=81sl@stanleylieber.com =E3=81=AE=E3=83=A1=E3=83=BC=
=E3=83=AB=EF=BC=9A
>=20
> Is this intentional?
>=20
> /sys/src/cmd/upas/smtp/smtp.c:180,183
>=20
> 	if(host =3D=3D 0)
> 		host =3D sysname_read();
> 	strcpy(hostdomain, domainify(host, domain));
> 	strcpy(hellodomain, domainify(sysname_read(), domain));
>=20
> If so, why?
>=20
> I updated my local smtp.c:
>=20
> 	strcpy(hellodomain, domainify(host, domain));
>=20
> Now, upas/smtp -h $fqdn (called by /mail/lib/remotemail)
> uses $fqdn for the HELO dialogue.
>=20
> sl