SPFAbuse

SPF are not as strong as you may think. Red Team tool to send email on behalf of your target corp. The email format is expected to be text/html

Moral of the story make sure that DMARC is enforced :)

API key

You need to register a free account on sendgrid to be able to send emails.

Usage

python3 SPFAbuse.py 
SPF Abuse - Mr.Un1k0d3r RingZer0 Team

Usage: SPFAbuse.py from to subject pathtofile apikey

Credit

Mr.Un1k0d3r RingZer0 Team