SPF

Default SPF records:

Google hosted e-mail: v=spf1 a ip4:133.7.133.7 ip6:1337:1337:1337:1337 include:_spf.google.com ~all Non Google hosted e-mail: v=spf1 a mx ip4:133.7.133.7 ip6:1337:1337:1337:1337 ~all

=== Testing SPF ===

• Kitterman SPF Testing Tools
• Emailstuff SPF check