Enter the email address and name you’d like to send mail as.”
What does that mean. I do not want to send emails with wordpress.
The users of the site have to fill contact forms to send emails to my client. That’s all.
you are confused. It’s not you personally who will send the emails. It is the website that will send the emails. And those emails need to come from an email address. For example [email protected]. Enter the same address you used when you setup WordPress. You can find that address in Settings > General.
I wonder how this plugIn could help me to debug
The plugin installs an email log that will give you more details of why Contact Form 7 is failing to send an email.
Postman: wp_mail has been declared by another plugin or theme, so you won’t be able to use Postman until the conflict is resolved
This means you already have a mail plugin on your system, and it’s failing to work. You will probably need help from someone, as you seem to be in over your head.