I use Postwhite to create a whitelist for Postscreen based on
user-configurable "trusted" mailers:
https://github.com/stevejenkins/postwhite (disclaimer: I'm the author).
Yahoo! has always been problematic (no surprise) because unlike all the
other big mailers that Postwhite queries, they don't e
Have you tried to look at whois and DNS records for these addresses? They might
have something in common.
Also, you seem to be doing something that's really Yahoo's job. Did you try to
bug them directly why they don't do it? (Would improve security or
something?..) If they use third party cloud
Am 01.05.2017 um 06:19 schrieb Steve Jenkins:
> Yahoo! has always been problematic (no surprise) because unlike all the other
> big mailers that Postwhite queries, they don't expose the IP addresses of
> their outbound mailers via their SPF records.
Hello Steve,
SPF is intended for an other u
