In some cases, Contact form 7 does not send message data correctly. This data includes the sender name, their email address or message. To fix this issue, follow these steps:
1. Go to “WordPress dashboard >> contact”
2. Select the form that you have used in Contact form shortcode.
3. In the form configuration tab, you can find the unique input names like the screenshot below
4. These input names should be used in the mail configuration tab
5. In the example above, you can fix the issue by changing [name] in the mail configuration tab to [your-name].
Also, you need to change [email] to [your-email].