Receiving Mail Delivery System error for almost every email generated by Drupal 7

What can be the reason?

here below the message from remote host

SMTP error from remote mail server after end of data: host p3nlsmtpcp-v01.prod.phx3.gdg []: 552 5.2.0 qo8J1p01B4NPGeA01 :: CPANEL :: Message rejected for spam or virus content :: Please include this entire message when contacting support ::

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.