Email not sent. SMTP Error: data not accepted.SMTP server error: DATA END command failed Detail: Configuration Set does not exist: Configuration set does not exist. SMTP code: 554 code example
Example: Message could not be sent. Mailer Error: SMTP Error: data not accepted.SMTP server error: DATA END command failed Detail: h8alkc4CZK9H0 Spam Rejected
$mail->Timeout = 20;