Fires after PHPMailer has successfully sent an email. The firing of this action does not necessarily mean that the recipient(s) received the email successfully. It only means that the `send` method above was able to process the request without any errors.

Parameters

.

( 5.9.0 ) . .

$mail_data

( array ) { An array containing the email recipient(s), subject, message, headers, and attachments. . . .

$to

( string[] ) Email addresses to send message. . . .

( string ) $subject Email subject. . . .

( string ) $message Message contents. . . .

$headers

( string[] ) Additional headers. . . .

$attachments

( string[] ) Paths to files to attach. } . . .