1. What possible options can a remote e-mail user in exchange5.5 to still send and receive mails to the other server domains even the Routing Restrictions (Hosts and clients that successfully authenticate) has been enabled?
Exact errors are detailed below:
The message could not be sent because one of the recipients was rejected by the server.
The rejected e-mail address was ‘user@hotmail.com’.
Subject ‘test’, Account: ‘pop.server.com’,
Server: ‘pop.server.com’, Protocol: SMTP,
Server Response: ‘550 Relaying is prohibited’, Port: 25,
Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79
Hope to hear from you soon. Thank you very much!