# ProtonID I recently had a need to identify a large number of emails/domains to see if they had protonmail accounts. I checked this by seeing if they had proton's MX records set up. ![image](https://user-images.githubusercontent.com/19278569/210284808-a5d629c4-105c-4070-a01e-a0fd051dcb5b.png) ![image](https://user-images.githubusercontent.com/19278569/210284867-2179f8cf-fa73-4561-95ce-98d02a900762.png) ![image](https://user-images.githubusercontent.com/19278569/210284845-c0c9dbe9-d43d-45e9-ac0c-c57ce9372280.png) # Usage ```bash python3 protonID.py -e me@grahamhelton.com python3 protonID.py -l list.txt python3 protonID.py -l /path/to/list.txt # Return just emails with some commandline kung-fu ./protonID.py -l emails.txt | grep "has proton mail MX records" | awk {'print $3'} | sort | uniq ```