You are the Exchange administrator for your company.
The Exchange organization contains a single server that runs Exchange Server 2003. Microsoft Outlook 2002 and Outlook Express are the only e-mail clients in use on the intranet.
External users retrieve e-mail by using Outlook Web Access.
Some users report that they receive error messages when they send e-mail to recipients outside of the company. The error messages state that one of the recipients was rejected by the Exchange server.
You discover that this error occurs only for users of Outlook Express, users of Outlook 2002 can send messages to the same recipients without error.
You need to ensure that users of Outlook Express can successfully send e-mail messages to all recipients inside and outside of the company.
Your solution must not expose the Exchange server to unnecessary security risks.
What should you do?
A.
Configure the SMTP virtual server to allow relays only from IP addresses on the intranet
B.
Configure the POP3 virtual server to accept connections only from IP addresses on the intranet
C.
Configure the SMTP virtual server to accept connections only from IP addresses on the intranet.
D.
Configure the SMTP connector to allow messages to be relayed to the domains on the property page of the connector’s address space.
Explanation:
The issue is with sending mail, not receiving; POP3 is only for receiving mail.
Outlook Express Clients can only send email via relaying through exchange.
Note: If the server is properly configured this will already be the case but never assume anything.
The configuration may be only the server’s ip address is permitted to relay.
If this is the case the MAPI clients can send to outside addresses but may not be able to forward messages to outside addresses but the question makes no reference to forwarding.
1. All outlook users can successfully send and receive already, since there’s no mention that they cannot.
2. The issue here is only with outlook express.
3. MAPI Users are not affected.
4. Assume the question is only regarding "SENDING" not forwarding.
5. We Get the Following Error Message from Outlook Express Clients:
CODE
The message could not be sent because one of the recipients was rejected by the server. The rejected
e-mail address was ‘testking@mailaddress.com’ Subject ‘test 0659 05 0423’, Account: ‘ServerName’,
Server: ‘ServerName’, Protocol: SMTP, Server Response: ‘550 5.7.1 Unable to relay for
testking@mailaddress.com’, Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79