I just posted an article about how to whitelist Gmail and Hotmail/Outlook.com IP addresses for Postscreen, based on the webmaster's SPF records:
http://www.stevejenkins.com/blog/2015/11/postscreen-whitelisting-smtp-outbound-ip-addresses-large-webmail-providers/ I'd appreciate feedback from anyone on this list generous enough to offer it, so I can fix any mistakes or make the article better. Thanks, Steve *Steve Jenkins* *st...@stevejenkins.com <st...@stevejenkins.com>* <http://t.sidekickopen29.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?t=http%3A%2F%2Fwww.stevejenkins.com%2F&si=4870762816077824&pi=a7bba61c-d5ff-4f17-ffdb-d2d16b1f8221> <http://t.sidekickopen29.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?t=https%3A%2F%2Fwww.linkedin.com%2Fin%2Fsjjenkins&si=4870762816077824&pi=a7bba61c-d5ff-4f17-ffdb-d2d16b1f8221> <http://t.sidekickopen29.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?t=https%3A%2F%2Ftwitter.com%2Fsjjenkins%2F&si=4870762816077824&pi=a7bba61c-d5ff-4f17-ffdb-d2d16b1f8221> <https://www.facebook.com/SteveJenkinsBiz> <http://t.sidekickopen29.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?t=https%3A%2F%2Fplus.google.com%2F%2BSteveJenkins&si=4870762816077824&pi=a7bba61c-d5ff-4f17-ffdb-d2d16b1f8221> <http://t.sidekickopen29.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?t=https%3A%2F%2Fwww.youtube.com%2Fuser%2FFerrariSteveJenkins&si=4870762816077824&pi=a7bba61c-d5ff-4f17-ffdb-d2d16b1f8221> <http://t.sidekickopen29.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?t=https%3A%2F%2Finstagram.com%2Fferraristeve%2F&si=4870762816077824&pi=a7bba61c-d5ff-4f17-ffdb-d2d16b1f8221>
