Hi all,

After some investigation, I *think* I see what's going on.

The list posting address is devt...@lists.preshweb.co.uk; however, of the bounce messages I've been forwarded, the posts were addressed to devt...@lyla.preshweb.co.uk.

Now, I *think* this is a DNS configuration issue; it seems I don't have MX records for lists.preshweb.co.uk configured, lists.preshweb.co.uk is instead a CNAME to lyla.preshweb.co.uk (lyla being the name of the machine actually responsible for hosting lists.preshweb.co.uk).

Now, this seems sensible to me, and seems to work for me when I send from my own mail account or from Google Mail, and also works for some of you.

However, for others, it seems as though your client is seeing that lists.preshweb.co.uk is a CNAME to lyla.preshweb.co.uk, and silently re-addressing the mail to devt...@lyla.preshweb.co.uk instead of devt...@lists.preshweb.co.uk.

This behaviour seems wrong and retarded to me, but seems the only explanation I can find (except if you were actually addressing your messages to devt...@lyla.preshweb.co.uk; however, checking the mails I sent out, the list info page, the list welcome email etc, I don't see that address listed *anywhere*, so it seems unlikely...

I'll investigate a bit further and see if I'm correct; if I am, I'll have to change lists.preshweb.co.uk from a CNAME to a straightforward A record, then create MX records too (DNS specs state that if a hostname is a CNAME, no other records for that hostname should exist).

I hate DNS :)

Cheers

Dave P




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