Why Your wp_remote_post Isn't Sending CF7 Data to Your API (And How to Fix It)

A developer posted this exact problem on the WordPress support forums: they followed a YouTube tutorial step-by-step, hooked into wpcf7_before_send_mail, built a wp_remote_post call and nothing arrived at the external API. No errors, no data, just silence.

This is more common than you'd think. Let's dissect exactly what went wrong in that code and how to fix it with a no-code alternative at the end if you'd rather skip the debugging rabbit hole.

The Original Code (And What's Broken In It)

Here's the code from the forum post, cleaned up for readability:

add_action( 'wpcf7_before_send_mail', 'blog_cf7_api_sender' );