E-Mail 1 not received since V 5.1.6

See Setting Up Mail – there is a link to an article I wrote at the bottom of that page (which is recommended by the CF7 plugin author, though I’m not allowed to link directly to it here) that covers this topic in detail. Most people that work carefully through this list of email sending issues are able to solve their particular problems.

Thanks for your answer, but again, the issue is not due to the email which is used as FROM. The email used is located on the server.
Moreover there is no issue in the EMAIL (2) for the same configuration as EMAIL (1) (FROM, TO, REPLY TO). I received the EMAIL (2) but not the EMAIL (1).

I trided to set the same html code that I have in the EMAIL (2), in that case I received the EMAIL (1)

I noticed something else (I used the capatcha V2), the capatcha code is always the same and when I click on the button submit I don’t have any message (email sent or error message). I am just receiving the EMAIL (2) but not the EMAIL1)

As a reminder everything was functionnal before the update to Contact form 7 v5.1.6. No modification had been set from me.

So I think the issue is in the HTML BODY of the EMAIL (1). But I am not understand why.

I fixed my issue !
In the body html message i d got :
<p>the winter is here<br />
choose : ice/fire</p>

The slash “/” between ice and fire was issue !!!
After removed the slash I received the EMAIL 1 and EMAIL 2

I don’t understand why this slash was erroring ???

But I still have the issue: after clicking on the buton submit I no have the message “your message had been sent”.

When you test form submissions, check your browser console for errors. Also, check error_log and wp-admin/error_log for anything that seems relevant.

Share here what you find.