Interesting article Steve. What happens when/if they change ip blocks in between cron runs? and I can't help thinking this may be a little redundant though, with spf, dkim and dmarc in place the source of the email is checked and acted upon accordingly.
Sent from my iPad > On 23 Nov 2015, at 7:42 p.m., Steve Jenkins <st...@stevejenkins.com> 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 > >
