Contact form + Sendinblue connexion

Make sure you use a unique email for each submission. Sendinblue will ignore contact requests when the same email already exists in your lists.

I tested with different email and data but it is always the same, nothing is implemented in the Sendinblue database

Where on the site do you have the form having the issue?

On the home page, just before the footer you have the form

See Setting up your contact forms

What configuration do you have in the Sendinblue tab panel?

Yes all it’s good. Like i tell you the first send works, after that with different mail is not work.
And i don’t know why the first send was good and not the other.