On 2021-11-22 10:38 -0800, Kevin J. McCarthy <ke...@8t8.us> wrote:
> On Mon, Nov 22, 2021 at 12:06:29PM -0600, Aaron Poffenberger wrote:
> > On 2021-11-22 09:50 -0800, Kevin J. McCarthy <ke...@8t8.us> wrote:
> > > On Mon, Nov 22, 2021 at 11:22:33AM -0600, Aaron Poffenberger wrote:
> > > > I know this is related to Message-ID because if I go into muttrc(5)
> > > > and put `set hostname="example.com"` and send again to
> > > > u...@sbcglobal.net, the message goes through without issue.
> > >
> > > Well, setting $hostname can affect other things too.
> > >
> > > Without the patch, if you *just* change your $message_id_format to
> > > "<%z...@example.com>" you are saying it goes through. Are you using
> > > $smtp_url
> > > or a local MTA? Are there any other possible variables?
> >
> > I use msmtp:
> >
> > set sendmail=/usr/local/bin/msmtp
> >
> > In my case just setting hostname was enough to fix it.
> >
> > Setting message_id_format would probably work as well, but it would
> > also mean all emails sent through other email domains would have
> > Message-IDs from a different domain. In my case I send from 5
> > different email domains.
>
> I understand, but I wasn't asking you to make a permanent change to your
> configuration; just to try setting the $message_id_format directly as I
> instructed without touching hostname (or anything else).
>
> As I and others in the thread have said, what you are describing makes no
> sense, so we'd like more cooperation verifying and helping to debug the
> behavior.
>
> > > The behavior you are describing is highly unusual, as the MTA is usually
> > > just looking at the EHLO and envelope addresses.
> > >
> > > > Also, as noted in my original, setting the fqdn of the Message-ID to
> > > > the fqdn of the From address make sense. When I'm sending email from
> > > > my laptop through gmail.com, the Message-ID picks-up the fqdn of my
> > > > laptop rather than using gmail.com.
> > >
> > > The purpose of the Message-ID is to be unique. Setting to the RHS to the
> > > local machine reduces the scope of randomness needed on the left side.
> > > There's no need or sense behind using the from domain.
> >
> > Mail.app uses <GUID>@<from fqdn>. The Google web interface uses
> > <hash>@mail.gmail.com. Notifications come from
> > <hash>@notifications.gmail.com.
>
> Sorry, I misspoke. I meant simply there is no *need* to use the from domain
> in the RHS. I don't believe Mutt's randomness for the LHS is sufficient to
> encompass a large domain by default, so would still be opposed to this.
>
> --
> Kevin J. McCarthy
> GPG Fingerprint: 8975 A9B3 3AA3 7910 385C 5308 ADEF 7684 8031 6BDA
I'm happy to try changing configuration using an unpatched version,
but I have to be careful sending too many test messages to
ATT/sbcglobal.net. They have an itchy RBL trigger.
I'm curious what you and the other say changes in the headers under
the various conditions of setting hostname or message_id_format.
The only changes I'm seeing in the headers when hostname is set is the
fqdn of the Message-ID.
Attached are three emails I sent from an unpatched mutt through my
gmail account. Each Subject line and body describes the changes made.
The emails are as stored by mutt using "set record=+Sent" and as
delivered to the MTA. The emails were sent from mutt, through msmtp,
to smtp.gmail.com via the Submission port, so this was MUA to MTA.
As you can see, the three versions differ only in the fqdn of the
Message-ID.
I understand the incredulity. I've been running email servers for more
than 20 years. I've never seen a recipient domain bounce emails
because of a reverse-look-up failure of the fqdn of the Message-ID.
Cheers,
--Aaron
Date: Mon, 22 Nov 2021 12:59:49 -0600
From: Aaron Poffenberger <s...@gmail.com>
To: Aaron Poffenberger <a...@hypernote.com>
Subject: Test from Self to Gmail -- No changes to hostname or
message_id_format
Message-ID: <yzvoo11hxljef...@host.example.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Unpatched version of mutt.
No changes in muttrc.
------------------------------------------------
Date: Mon, 22 Nov 2021 13:03:35 -0600
From: Aaron Poffenberger <s...@gmail.com>
To: Aaron Poffenberger <a...@hypernote.com>
Subject: Test from Self to Gmail -- No change message_id_format, hostname set
Message-ID: <yzvphjpe2sm3d...@hypernote.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Unpatched version of mutt.
set hostname="hypernote.com"
------------------------------------------------
Date: Mon, 22 Nov 2021 13:05:50 -0600
From: Aaron Poffenberger <s...@gmail.com>
To: Aaron Poffenberger <a...@hypernote.com>
Subject: Test from Self to Gmail -- No change to hostname, message_id_format
set
Message-ID: <yzvqdus0in7ve...@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Unpatched version of mutt.
Set message_id_format="<%z...@mail.gmail.com>"
------------------------------------------------
Date: Mon, 22 Nov 2021 13:23:13 -0600
From: Aaron Poffenberger <s...@gmail.com>
To: Aaron Poffenberger <a...@hypernote.com>
Subject: Test from Self to Gmail -- Set hostname and message_id_format
Message-ID: <yzvuicuidsnub...@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Unpatched version of mutt.
set hostname="hypernote.com"
Set message_id_format="<%z...@mail.gmail.com>"
