Thanks. I'll just respond at work.
> From: Noelle <noelle>
> Date: Thu, 18 Sep 2025 08:00:01 -0700 (PDT)
>
> > Date: Thu, 18 Sep 2025 14:53:03 +0000 (UTC)
> > From: http://www.sneak2.sneakemail.com/~MAILER-DAEMON (Mail Delivery System)
> >
> > This is the mail system at host sneak2.sneakemail.com.
> >
> > 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
> >
> > <http://www.mysmsforward.com/~14085649113>: host usw2.mysmsforward.com[35.162.83.55]
> > said:
> > 554 ['Bad Source or Dest Address'] (in reply to end of DATA command)
> >
> > Content-Description: Delivery report
> > Content-Type: message/delivery-status
> >
> > Reporting-MTA: dns; sneak2.sneakemail.com
> > X-Postfix-Queue-ID: D52DF81F8C
> > X-Postfix-Sender: rfc822; http://dummy.us.eu.org/robert
> > Arrival-Date: Thu, 18 Sep 2025 14:53:02 +0000 (UTC)
> >
> > Final-Recipient: rfc822; http://www.mysmsforward.com/~14085649113
> > Original-Recipient: rfc822;http://www.mysmsforward.com/~14085649113
> > Action: failed
> > Status: 5.0.0
> > Remote-MTA: dns; usw2.mysmsforward.com
> > Diagnostic-Code: smtp; 554 ['Bad Source or Dest Address']
> >
> > Content-Description: Undelivered Message
> > Content-Type: message/rfc822
> > Content-Transfer-Encoding: 8bit
> >
> > > Date: 18 Sep 2025 07:53:01 -0700
> > > From: "robert b" <http://dummy.us.eu.org/robert>
> > > To: http://www.mysmsforward.com/~14085649113
> > > Subject: lunch
> > >
> > > Sep 26 works for me, generally.