WordPress - Contact Form7 - Modify php code of analyze to inject own spam-check


Staff member
I have Breaked my lance searching over english and russian manuals

I`m running site on the Wordpress platform.
Its contact form is WordpressContactForm7.

The Issue:
spam is beeing REPEATEDLY sent 5-7 times a day
through the contact form to my callcenter`s email.

My work:
I made simple spam filter in php that block common phrases and emails,
that beeing found in body of message - makes its spam-rating hotter and hotter.

Everything after spam-level 90% is blocked.
Everything after 60% must block user to 1-email-a-day- mode

The Problem :
I could not find any proper place in WPCF7 phpcode to inject my own.

I am new to wordpress and could find only two entry-points:
1) virtual address of data-processor
that is virtual and tells me nothing about the place where wpcf7 have server-processing and sending to my mail.

2) installation ZIP of contact-form-7 plugin
Also it has lots of everything -
And I watched through carefully - but I found I cannot make a full image of it in my mind /

So I decided to ask for the help the experienced coder to show off the different ways to deal with that.

(Note1 I am a little affraid of WP, and prefer to rely on my own raw php skills and build-from-zero code constructions. I
m much better dealing the code done by me rather than somebody outer

(Note2 I ve heard that json api is vuln...)

(Note3 I`m afraid of updating any components - the cause is that WP is controlled and carried by superirors - so any my fault can be the last one^)

Please Kindly consult me on the topic, If possible <3
Thank You