5 karma · joined June 5, 2018
If your spf is too heavy, add universal spf and then watch it work by either sending a test message or rechecking your spf with https://vamsoft.com/support/tools/spf-policy-tester
Any domain can toss "v=spf1 include:UniversalSPF.org -include:x.UniversalSPF.org" in front of their broken SPF record to automagically clean and fix it. This authorizes mail that the domain owner expects to pass, and fails the mail they expect to fail.
Source: One of my startup's covid projects was creating and giving away https://UniversalSPF.org. We'd already been providing SPF Compression commercially since c. 2015.
It's free to use and already trusted by several hundred businesses.
Here's a good spf evaluator in case you want to see universal spf fix your domain's policy: https://vamsoft.com/support/tools/spf-policy-tester and a more technical deep dive for you other command line geeks: https://fraudmarc.com/introducing-universal-spf/
Thought some of you might enjoy a candid peek behind the curtain of our humble startup. How do we dodge death and create layer 2 email protocols?
I'll hang around for a few hoping you other founders have suggestions or want to geek out on email protocols.