Validate SPF

Hey Product Hunt👋! Sender Policy Framework (SPF) helps combat email spoofing and phishing. It allows domain owners to specify which servers are authorized to send emails on their behalf. But, if you're like me, you only adjust any SPF records on rare occasions, so you probably don't always recall precisely how it needs to be formatted or its "rules." When I had to do this recently, I looked for a validator, and the ones I found all assumed I already had a lot of knowledge of how SPF works. So, I built a free, simpler validator! A broken or incorrect SPF record on your domain can cause email deliverability issues and allow bad actors to send emails claiming to be from your domain. So, it's worth a few seconds to enter your domain to ensure there are no issues. Thanks! ~ Frank P.S. If you're a Python dev, the underlying code for validating the SPF record is packaged up as a Python module and open-sourced (and is my first Python package published in the PyPi repository 🎉). You can check it out here to use in your projects when needed: https://pypi.org/project/spf-val...