[Mimedefang] OT: DNS sanity check
Jason Gurtz
jason at jasongurtz.com
Wed Jul 4 20:45:28 EDT 2007
On 7/4/2007 13:41, John Rudd wrote:
> Let me guess: AOL is the refusing ISP?
>
> They've had this as a standard policy for quite a while.
Actually, their policy seems to still be (since about 2004 timeframe)
reject only when there's NO ptr record. Mismatched ptr/a records don't
seem to cause a problem with them (tho obviously they should match).
~Jason
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