Re: NDNs considered harmful2010-08-12 12:11:32On Aug 12, 2010, at 12:26 PM, Paul Smith wrote: (I'm not asking for a solution really - just saying that the 'NDN' issue isn't that easy - if an upstream ISP blocks outgoing port 25 (blocking sending using MX routing), and then blocks all outgoing mail because of 'spam' (NDNs) then you have no choice but to not send NDNs). ... or change upstream ISPs to one with a clue. :-)
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