On Mon, Jun 05, 2000 at 03:37:30PM +0200,
Pablo Mart�nez Schroder <[EMAIL PROTECTED]> wrote:
> Bruno Wolff III wrote:
> > There isn't any MX or A record associated with hidratel.com. Some sites
> > check for the existance of an A record or MX record and refuse email
> > if there isn't one. Not all sites do this. This also might be a problem
> > with only some of the DNS servers authoritative for hidratel.com.
>
> The domain hidratel.com has a MX record, but it doesn't have any A
> record. Does a domain need to have both records configured? Or it
> depends of the configuration of the other SMTP servers?
You are correct about the mx. When I do wildcard lookups with nslookup
(type=any) I only get the NS records for hidratel.com. When I specifically
ask for MX records I get one.
Domain names in envelope sender addresses don't have to exist. But some
places check this to reduce spam and double bounces.
