On Fri, Nov 16, 2018 at 05:54:13PM +0100, Martin Sukany wrote:
> Hello Craig,
>
> I don't think so .. I'm just enforcing encrypted communication ... :)
>
> {
>
> listen on vio0 port25 tls-require auth-optional pki sukany.cz
>
> }
>
> M>
RFC 2487:
A publicly-referenced SMTP server MUST NOT require use of the
STARTTLS extension in order to deliver mail locally. This rule
prevents the STARTTLS extension from damaging the interoperability of
the Internet's SMTP infrastructure. A publicly-referenced SMTP server
is an SMTP server which runs on port 25 of an Internet host listed in
the MX record (or A record if an MX record is not present) for the
domain name on the right hand side of an Internet mail address.
>
> On 11/16/18 4:50 PM, Craig Skinner wrote:
> > Martin, your mail server is badly configured (broken):-
> >
> >
> >
> >
> > Begin forwarded message:
> >
> >
> > From: [email protected] (Mail Delivery System)
> > To: [email protected]
> > Subject: Undelivered Mail Returned to Sender
> > Date: Fri, 16 Nov 2018 12:17:13 +0000 (GMT)
> >
> > This is the mail system at host teak.britvault.co.uk.
> >
> > I'm sorry to have to inform you that your message could not
> > be delivered to one or more recipients. It's attached below.
> >
> > For further assistance, please send mail to postmaster.
> >
> > If you do so, please include this problem report. You can
> > delete your own text from the attached returned message.
> >
> > The mail system
> >
> > <[email protected]>: host server.sukany.cz[89.221.217.40] said: 530 5.5.1
> > Invalid command: Must issue a STARTTLS command first (in reply to MAIL
> > FROM command)
> >
> > From: Craig Skinner <[email protected]>
> > To: Martin Sukany <[email protected]>
> > Subject: Re: Vacation with smtpd doesn't work in 6.4
> > Date: Fri, 16 Nov 2018 11:31:52 +0000
> >
> >
> > Try the OpenSMTPd list Martin.
> >
> > http://www.OpenSMTPd.Org/list.html
> >
> > Cheers,
> >
> > Reporting-MTA: dns; teak.britvault.co.uk
> > X-Postfix-Queue-ID: 42xGL107FCzVd
> > X-Postfix-Sender: rfc822; [email protected]
> > Arrival-Date: Fri, 16 Nov 2018 11:32:23 +0000 (GMT)
> >
> > Final-Recipient: rfc822; [email protected]
> > Original-Recipient: rfc822;[email protected]
> > Action: failed
> > Status: 5.5.1
> > Remote-MTA: dns; server.sukany.cz
> > Diagnostic-Code: smtp; 530 5.5.1 Invalid command: Must issue a STARTTLS
> > command
> > first
>
> --
> Martin Sukany
> UNIX Engineer - Solaris / Linux / OpenBSD L3 specialist
> www.sukany.cz
>
