On 2021-11-22 17:54 +0000, Claus Assmann <mutt+...@esmtp.org> wrote: > On Mon, Nov 22, 2021, Aaron Poffenberger wrote: > > > <user>@*sbcglobal.net*: 550 5.7.1 Connections not accepted from > > servers without a valid sender domain.alph758 Fix reverse DNS for > > 198.51.100.1 > > Do you have the real DSN? Does it say during which stage this error > happened? Or does your server log show it? > > > 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. > > That changes more than the Id, so it doesn't implement the test I > suggested. > > Do you happen to have an sbcglobal.net or att.net address which > could be used for real testing with some tool which allows to > observe the SMTP dialogue?
No. I don't have an account of my own. Cheers, --Aaron
