On Sun, Dec 03, 2006 at 06:41:43PM +0100, Frank Ellermann wrote:
Sigh, amazon.com uses ?all, and their TXT RRs are too long for UDP :-(
microsoft.com has a txt record which includes
_spf-ssg.microsoft.com. 3552 IN TXT "v=spf1 a:smtp.msn.com
a:smtp2.msn.com a:smtp3.msn.com a:smtp4.msn.com ~all"
Currently only A(smtp4.msn.com.) does NOT need TCP.
Something like "ip4:207.68.176.0/24" would certainly have been
much better, but I guess their internal communication makes it
hard to maintain a reliable SPF record.
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