Automattic\WooCommerce\Internal\Email

EmailLogger::capture_mail_error │ public │ WC 1.0

Capture the PHPMailer error from a failed wp_mail() call so it can be included in the log entry.

Error attribution is best-effort: wp_mail_failed is a global hook, so any plugin's failed wp_mail() call will set $last_mail_error. The trailing edge is controlled — $last_mail_error is cleared immediately after each WooCommerce send — but the leading edge is unbounded: a non-WooCommerce wp_mail_failed fired before a WooCommerce send failure will be attributed to that WooCommerce send. This may produce misleading error reasons in stores where other plugins also call wp_mail().

Method of the class: EmailLogger{}

No Hooks.

Returns

null. Nothing (null).

Usage

$EmailLogger = new EmailLogger();
$EmailLogger->capture_mail_error( $error ): void;
$error(WP_Error) (required)
The error returned by wp_mail.

EmailLogger::capture_mail_error() code WC 11.0.1

woocommerce/src/Internal/Email/EmailLogger.php 
public function capture_mail_error( WP_Error $error ): void {
	$this->last_mail_error = $error->get_error_message();
}