Hi,
Are other emails sent from the site also multiplied this way?
I’ve got an Elementor contact form. The emails of that form are not multiplied.
Are you using any SMTP/email plugins on your site?
Yes I’m using WP Mail SMTP.
Please also check if there aren’t multiple notifications set in the Email Tab.
Just Admin Email.
Link to exporting code: https://pastebin.com/75s8SR6M
I hope this information will be enough for you to give me an answer.
Kind regards,
Cédric