ERROR: 550 message submission is for authorised users only

Last Modified

Fri May 29 11:10 GMT 2020

Description

  • When sending outbound mail I receive the following error message:
A problem occurred during the delivery of this message to this e-mail address. Try sending this message again. If the problem continues, please contact your helpdesk. The following organization rejected your message: mx15.antispamcloud.com.
550 message submission is for authorised users only.
NOTE:
  • The MX number may vary.
  • Message classification is Message submission is for authorised users only!, what does that mean?
  • I have received a bounceback with the message "Message submission is for authorised users only!, what does that mean?" for an outbound message.
  • I have received an NDR with the message "Message submission is for authorised users only!, what does that mean?" for an outbound message.

Environment

  • Mail Assure

Solution