From: Chris Green (chrisareti.co.uk)
Date: Sat Mar 01 2003 - 07:03:18 CST

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On Fri, Feb 28, 2003 at 05:43:08PM -0600, Noel Jones wrote:
> At 11:16 PM 2/28/03 +0000, Chris Green wrote:
> >How does one deal with destinations that give a "Host name has no
> >address" error?
> >
> >This is a perfectly valid E-Mail address that lives behind a firewall
> >so presumably there are MX records (is that right?) for it somewhere.
> >
> >How do I get postfix to send mail to chriskbss.bt.co.uk which is my
> >work E-Mail? I know that I could go via my ISP's mail relay but that
> >is one of the things I want to avoid.
>
>
> It sounds as if that host doesn't like your HELO name.
> postconf smtp_helo_name
> to see what yours is set as.
>
Aha, yes, you're right - thanks. smtp_helo_name is set to $myhostname
which isn't a valid registered name ($mydomainname is).

> RFC standards say this name must be a valid hostname with an A or MX record.
> Some sites choose to not accept mail from misconfigured mail servers.
>
> You really should show us relevant log entries when asking questions.
>
Yes, OK, sorry, I'm still very much feeling my way and learning
things. It's not been as painful as I remember qmail being though.

--
Chris Green (chrisareti.co.uk)

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