Postwhite 3.4

• New helper script to create custom whitelists for mailers who don't publish outbound IPs via SPF (#44)

Postwhite 3.3

• Fixed IPv4 /32 hosts being removed (#41)
• Added new webmail hosts (#35)
• Added new bulk mail hosts (#2)
• Added Travis CI support (#36)

Postwhite 3.1

• Added ability to scrape static Yahoo! list of outbound mailers to include in whitelist

• Added ability to pass a different configuration file from the command line

Postwhite 2.3

Adds new hosts as well as better error checking.

Postwhite 1.35

Added optional blacklist functionality. Blacklist is generated as a separate file, and should be included in Postfix configuration after the whitelist, so that if an IP address is accidentally included in both lists, the first entry "wins."

Postwhite 1.33

Added fastmail.com to webmail senders

See:

• http://www.stevejenkins.com/blog/2015/11/postscreen-whitelisting-smtp-outbound-ip-addresses-large-webmail-providers/
• http://www.postfix.org/