SMTP is not authenticating my Remote Outlook Client for Relay?

SMTP is not authenticating my Remote Outlook Client for Relay?

Post by Geffrey Brau » Sat, 05 Jul 2003 02:40:05

Regarding SMTP relaying with Exchange Server 2003, for a
remote Outlook Client POP3/SMTP:

It does not appear that I am authenticating for SMTP:

In the Relay tab on the SMTP Virtual Server Properties, I
have Allow "only the list below" checked, with the ip
that the dialup provider assigned in the list-I can relay-
without it I can not. I also have the "Allow all
computers which successfully authenticate to relay,
regardless of the list above". That setting I was
assuming would let anyone relay who authenticates their
userid and password from the Active Directory, which
apparently is not happening since I can not relay without
having my ip address in the list above. Is there a
specific syntax I should use in the SMTP client for


1. authenticating to smtp server from Outlook client


 I have set up routing restrictions on my smtp server (Exchange 5.5) and on
the routing tab of my IMS properties, I went to routing restrictions and
selected "Hosts and client that successfully authenticate" and restarted my
IMS. Now, on the client I selected "My server requires authentication" and
to use the same settings as my incoming mail server. When you click send and
receive to send an e-mail outside of my domain it errors out with "relay
prohibited". The problem is it never authenticates with the server. What is
wrong? any help would be appreciated

Rick Patterson

2. Message Journaling

3. Outlook 98 Clients not authenticating

4. Microsoft Services for Netware -- Does this in any way affect an Exchange Organization when installed on an Exchange Server?

5. SMTP doesn't relay even though user is authenticated

6. working with 2 domains

7. IIS Unable to relay. Client authenticates OK.

8. Outlook clients modifying own info

9. SMTP Relay errors for Authenticated Users - Help :-)

10. Can't authenticate properly to do SMTP Relay

11. IIS Unable to relay. Client authenticates OK.

12. Want to allow SMTP relay only for authenticated users

13. smtp relay was on - now I am blacklisted