Message could not be sent. Mailer Error: SMTP Error: data not accepted.SMTP server error: DATA END command failed Detail: h8alkc4CZK9H0 Spam Rejected 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;