[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] wrote:
> On Tue, Mar 07, 2000 at 04:03:31PM -0800, Bryan Curnutt wrote:
> [snip setup]
> >
> > dunkdunk.dev.salu.com has an MX record pointing to web.dev.salu.com.
> > Also an A record pointing to the same IP as web.dev.salu.com (formerly
> > a CNAME record pointing to web.dev.salu.com, temporarily changed to
> > an A record to see whether it made any difference).
>
> [...]
> I think the problems with the A record are related to nameserver cache
> refresh timeouts.
>
> Also, sendmail indeed does rewriting on a CNAME, which might be an
> explanation. Actually, qmail does that too. It's an RFC rule.
You found the problems exactly. The combination of previously having
defined the virtual domain as a CNAME, and the CNAME still being in the
ISP's nameserver cache, were causing my ISP's mail server to (correctly)
rewrite the destination address.
And, as I'd hoped, the problem turned out to be off-topic for the
qmail list. :-)
