Emails returned with error message 554 5.7.9
All emails (both originals or replies) to customers using sbc.global.net fail to be delivered "due to permanent fatal errors" reason: 554 5.7.9 - message not accepted for policy reasons. How can I fix this??
All emails (both originals or replies) to customers using sbc.global.net fail to be delivered "due to permanent fatal errors" reason: 554 5.7.9 - message not accepted for policy reasons. How can I fix this??