On Thu, Mar 21, 2013 at 12:23:18PM +0100, Paul de Weerd wrote: >For the sendmail heroes out there... Let's say I have the following >in DNS: > >$ORIGIN example.com. >@ IN MX 10 mx1 >@ IN A 192.0.2.1 >@ IN AAAA 2001:db8::1 >mx1 IN A 192.0.2.2 >mx1 IN AAAA 2001:db8::2 >www IN A 192.0.2.1 >www IN AAAA 2001:db8::1 > >$ORIGIN 2.0.192.in-addr.arpa. >1 IN PTR example.com. >2 IN PTR mx1.example.com. > >$ORIGIN 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa. >1 IN PTR example.com. >2 IN PTR mx1.example.com. > >(assume there's SOA and NS records too, they're not relevant to the >question) > >Now on machine 'www.example.com' (this is the hostname set in >/etc/myname) I would like to send e-mail to x...@example.com. However, >sendmail ignores the MX record and attempts local delivery (which >fails, because 'xxx' is not a local user).
Are you sure this is becaus of the PTR record (according to the subject of your email)? I think sendmail looks up the A and MX record for example.com and sees that the A record is a local IP. So, do you need the A record for example.com? In case this record is only needed for those who omit www when trying to visit your website, you might try to use a CNAME instead. Maurice
