On 11/23/2015 1:42 PM, Steve Jenkins wrote: > 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 <mailto: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/f18dQhb0S7lC8dDMPbW2n0 x6l2B9n MJN7t5XX4S9MSCW3LPWyM3LjCtjVQZcFT56dvXWf7fnxkP02?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>
Maintaining a local postscreen whitelist of well-known providers is largely obsolete. http://www.postfix.org/postconf.5.html#postscreen_dnsbl_whitelist_threshold http://www.postfix.org/postconf.5.html#postscreen_dnsbl_sites a minimal main.cf example would be something like: postscreen_dnsbl_sites = zen.spamhaus.org*1 list.dnswl.org*-1 postscreen_dnsbl_whitelist_threshold = -1 -- Noel Jones
