Could anyone help me to integrate mailrelay API Notifications into s2member?

hi!
could anyone help me to integrate mailrelay API Notifications into s2member?

would like to send an automatic message to all buyers. I have asked to wp sharks and they have said me that there is a way to integrate manually.

I have s2member pro
the API url is this one https://mailrelay.com/es/api-documentation

I have read this https://s2member.com/kb-article/building-an-api-notification-handler-webhook/
but I have some questions? after creating that php file how can mailrelay get the information? does mailrelay need to work with transactional message?

thanks

Hi asier,

Did you find a solution?