550 relaing denied when you send mail from outside
Posted on 2006-05-18
I have Exchange 5.5 on nt 4 I put all needed checkmarks on routing restrictions tab in IMS properties and it work fine
Now some users start work outside of our network using laptops. They connect to internet using any available connection
Users can recieve mail can send mail to firstname.lastname@example.org (our email domain) but if they send mail to any different
domain (like yahoo, hotmail...) they getting error 550 relaying denied
Haw I can let them send mail to any email address?