On Wednesday, 29 December 2010, Paul de Weerd <[email protected]> wrote: > On Wed, Dec 29, 2010 at 10:47:11PM +1100, SJP Lists wrote: > | This raises the PTR problem. > | > | Only one of those domains is going to have records that match forward > | and reverse? If not, some anti-SPAM gateways will drop. > > How so ? > > a.example.com. IN MX 10 mx.example.com. > b.example.com. IN MX 10 mx.example.com. > c.example.com. IN MX 10 mx.example.com. > d.example.com. IN MX 10 mx.example.com. > mx.example.com. IN A 192.0.2.1 > mx.example.com. IN AAAA 2001:db8::1 > 1.2.0.192.in-addr.arpa. IN PTR mx.example.com. > 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa. IN PTR mx.example.com. > > Why does your MX have to live in the same zone as what it's MX'ing > for ? > > Paul 'WEiRD' de Weerd > > -- >>++++++++[<++++++++++>-]<+++++++.>+++[<------>-]<.>+++[<+ > +++++++++++>-]<.>++[<------------>-]<+.--------------.[-] > http://www.weirdnet.nl/ >
Ah yes, true. Spoke too soon! Appologies!
