jetpack_contact_form_email_headers

Allow customizing the email headers. Warning: DO NOT add headers or header data from the form submission without proper escaping and validation, or you’re liable to allow abusers to use your site to send spam. Especially DO NOT take email addresses from the form data to add as CC or BCC headers without strictly validating each address against a list of allowed addresses.

Parameters

$headers

(string | array)

Email headers.

$comment_author

string

Name of the author of the submitted feedback, if provided in form.

$reply_to_addr

string

Email of the author of the submitted feedback, if provided in form.

$to

(string | array)

Array of valid email addresses, or single email address, where the form is sent.

Changelog

• Introduced in Jetpack 10.2.0

How to use this hook

See “How to use actions and filters to customize Jetpack”.

Notes

add_filter(
	'jetpack_contact_form_email_headers',
	function ( $headers, $comment_author, $reply_to_addr, $to ) {
		$headers .= 'Bcc: ' . $reply_to_addr . "\r\n";
		return $headers;
	},
	10,
	4
);