Why my client's emails keep on landing in the spam folder?

Hallo
unfortunately what you explain above is what I did by intuition, and it doesn't work, all my client's emails keep on landing in the spam folder, there noooooo way

Hi,

Apologize for the inconvenience.

Can you please share the link of the form you are having an issue with email being sent to the spam folder? Also can you please share the submission id so we can look into the issue in a better way?

You can try using SMTP to avoid filter issues: https://www.jotform.com/help/244-how-to-setup-smtp-for-a-form/

Guide:

https://www.jotform.com/help/chapter-12-email-problems/