I have created a drop-in replacement for openspf.net which can use the same parameters:
For example:
https://www.mxcheck.com/Why?s=mfrom;<email address hidden>;ip=192.188.95.169;r=%3CUNKNOWN%3E;
I know it's not as good as the original but it's something and only requires the domain to be changed.
I have created a drop-in replacement for openspf.net which can use the same parameters:
For example:
https:/ /www.mxcheck. com/Why? s=mfrom;<email address hidden> ;ip=192. 188.95. 169;r=% 3CUNKNOWN% 3E;
I know it's not as good as the original but it's something and only requires the domain to be changed.