Email Delivery issue

Iron Contributor



Please i need your help on this issue.


We are having issue with email delivery from outside our organization. 


Its only receiving emails from people inside my organization. 


When I tried to send an email from Gmail I received this error below:






2 Replies
Please review below that value MX recoard!
Generally this error is given when the service receiving the email does not know about the email address, so it really depends how messages are routed to your mailboxes and what services the messages goes through to get to the recipient mailbox