Groups | Search | Server Info | Login | Register


Groups > comp.sys.acorn.networking > #5240

Re: ISP update breaks Hermes

From Bob Latham <bob@sick-of-spam.invalid>
Newsgroups comp.sys.acorn.networking
Subject Re: ISP update breaks Hermes
Date 2025-07-24 19:53 +0100
Organization None
Message-ID <5c4193d31dbob@sick-of-spam.invalid> (permalink)
References (3 earlier) <128c03415c.chris@mytardis> <5c410cd720bob@sick-of-spam.invalid> <bdf316415c.chris@mytardis> <5c4156eae9bob@sick-of-spam.invalid> <ioE*-diiA@news.chiark.greenend.org.uk>

Show all headers | View raw


In article <ioE*-diiA@news.chiark.greenend.org.uk>,
   Theo <theom+news@chiark.greenend.org.uk> wrote:
> Bob Latham <bob@sick-of-spam.invalid> wrote:

> > The xentric (or whatever its called) people told me my problem is
> > in the helo message but having got passed the issues of
> > certificates and AcornSSL it is not preventing me posting so I
> > have time to fiddle.

> > Their error log tells me to look at certain rfc specs and that
> > tells me that the helo needs to be either an ip address in square
> > brackets [x.x.x.x] or an FQDN. The logs from Hermes shows that
> > mine is neither at the moment. My best efforts to change that in
> > RISC OS not Hermes didn't do anything according to Hermes logs.
> > I'm working on it...

> > I'm at a loss to understand why the "local domain" field is
> > greyed out unless you have "try name server too" ticked. The
> > whole local domain thing makes zero sense to me.

> I think you're conflating two things.  The HELO/EHLO is something
> said during the SMTP handshaking - I type 'HELO example.wibble'
> when connecting to the SMTP server:

Yes, that is where that issue occurs.

> That's entirely different from anything set in your machine's IP
> address config for talking to the local network.

I'm confused again.

Here is what the isp sent to me from their logs...

2025-07-23 10:46:43 H=dudl [snip details] .virginm.net (iMX6-1)
[82.34.xx.xx] F=bob@somewhere.org.uk rejected RCPT rcomp@rcomp.co.uk:
R1: HELO should be a FQDN or address literal (See RFC 2821 4.1.1.1)

So I looked at the RFC. It says either an ip address in square
brackets or an FQDN.

Mine is/was just iMX6-1.

So my reading of that is it should be either:

[192.168.1.31]    Can't be a WAN address that changes quite a bit and
                  it seems to need to specify the machine which the
                  Wan address can't do due to NAT. On the other hand
                  the LAN address is irrelevant to anything on the
                  WAN. 
or
iMX6-1.somewhere.org.org.uk

Why can't articles be clear what they mean by IP address !

> Try using that.  Thunderbird sends the string
> 'ehlo.thunderbird.net' to any server (in order to avoid leaking the
> local IP address):
> https://support.mozilla.org/en-US/kb/thunderbird-smtp-ehlo

That article suggests its the WAN IP address it's after. Grrrr.

Sorry but what do you mean by local IP address? Lan or Wan?

> You could tell Hermes to use the same.  At least then it would be
> identical to a popular mail client.

Right so we don't touch the OS settings just the smtp setting in
Hermes for that account?

I'll give that a spin over the next day or two. Bit sick of it at the
moment. 

> There's a second issue with Server2.xencentrichosting.uk
> specifically that it's using a self-signed certificate, but I
> suspect that might be different with the mail.yourdomain.com
> servers.  So may not be relevant in your case.

Oh no. Please make it stop !!

Thanks,

Bob.

Back to comp.sys.acorn.networking | Previous | NextPrevious in thread | Next in thread | Find similar


Thread

ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 11:37 +0100
  Re: ISP update breaks Hermes Theo <theom+news@chiark.greenend.org.uk> - 2025-07-23 13:12 +0100
    Re: ISP update breaks Hermes Martin <News03@avisoft.f9.co.uk> - 2025-07-23 13:21 +0100
      Re: ISP update breaks Hermes Chris Hughes <news13@noonehere.co.uk> - 2025-07-23 13:47 +0100
        Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 15:58 +0100
      Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 15:56 +0100
    Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 15:55 +0100
      Re: ISP update breaks Hermes Chris Hughes <news13@noonehere.co.uk> - 2025-07-23 17:28 +0100
        Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 19:24 +0100
  Re: ISP update breaks Hermes Chris Hughes <news13@noonehere.co.uk> - 2025-07-23 13:20 +0100
    Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 16:08 +0100
      Re: ISP update breaks Hermes Chris Hughes <news13@noonehere.co.uk> - 2025-07-23 17:37 +0100
        Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-23 19:18 +0100
          Re: ISP update breaks Hermes Chris Hughes <news13@noonehere.co.uk> - 2025-07-23 21:09 +0100
            Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-24 08:47 +0100
              Re: ISP update breaks Hermes Theo <theom+news@chiark.greenend.org.uk> - 2025-07-24 10:59 +0100
                Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-24 19:53 +0100
                Re: ISP update breaks Hermes Theo <theom+news@chiark.greenend.org.uk> - 2025-07-24 22:22 +0100
                Re: ISP update breaks Hermes Bob Latham <bob@sick-of-spam.invalid> - 2025-07-25 08:47 +0100
                Re: ISP update breaks Hermes Theo <theom+news@chiark.greenend.org.uk> - 2025-07-25 16:59 +0100

csiph-web