{"version":"1.0","provider_name":"Rainbow Dash Network","provider_url":"http:\/\/rainbowdash.net\/","type":"link","title":"Bit Shift (bitshift)'s status on Monday, 03-Sep-12 05:24:24 UTC","author_name":"Bit Shift (bitshift)","author_url":"http:\/\/rainbowdash.net\/bitshift","url":"http:\/\/rainbowdash.net\/notice\/1881655","html":"@<span class=\"vcard\"><a href=\"http:\/\/rainbowdash.net\/user\/2959\" class=\"url\" title=\"Kaiba (formerly Ponydude)\"><span class=\"fn nickname\">widget<\/span><\/a><\/span> SPF is Sender Policy Framework. It's a TEXT (usually - there's one other valid type, but I don't recall it) record in DNS that basically says &quot;these IPs are the only ones meant to be sending mail that claims to be from this domain&quot; - if the sending machine's IP isn't on there, most of the big mail providers will just silently drop mail from it."}