On Tue, Oct 12, 2010 at 10:05 AM, Ian Smith <smi...@nimnet.asn.au> wrote: > On Mon, 11 Oct 2010, Eugene Grosbein wrote: > > Hi! > > > > FreeBSD 8.1-STABLE: > > > > # host koin-nkz.com. > > koin-nkz.com has address 62.231.164.101 > > Host koin-nkz.com not found: 3(NXDOMAIN) > > > > This domain does not have MX records but NXDOMAIN seems to wrong return > > code to me. Think about MTA that does look-up for MX first, > > obtains NXDOMAIN and rejects mail. > > If a domain has no MX server, how's an MTA supposed to do mail with it? >
The same way as has been done since they invented the MX record type - if no MX record exists, fallback to an A record. See RFC 5321, section 5.1. Cheers Tom _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
