On 06/28/2010 09:49 PM, Genes MailLists wrote: > > SPF ... bah its silly. Here's another reason not to use it ... DKIM is > much better. Not perfect but much better. > Not advocating either one. Just used that to indicate that *if* gmail valued SPF and *if* their choice of SPF records hinted at what number of servers they could call upon what that number could be. (Note: I doubt they value SPF since they did use ?all) > This is google trying to compact the SPF record - those netblocks are > not all used for mail. If they didn't do this they would have very very > very long SPF records .. lol. > > Go after the hosts which actually send their mail outbound ... last I > checked its in the 2,700 zone. > One hopes they are contiguous and easy to list as the netblocks are in the SPF records. OK, I'll bite, how did you arrive at the number? > And no that's not a lot to whitelist at all ... > > But, you did say "last time you checked" which indicates maintenance is needed. Gmail being one of several lists you need to maintain. It is additive. I suppose if you like to ensure work or job security you could sell that to a PHB. :-) -- Hello... IRON CURTAIN? Send over a SAUSAGE PIZZA! World War III? No thanks! 葛斯克 愛德華 / 台北市八德路四段
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