Client Can Send But Cannot Reply

From: Josep MP (JosepMP_at_discussions.microsoft.com)
Date: 12/14/04 

Date: Tue, 14 Dec 2004 02:51:04 -0800

Scenario :
Exchange 2000 Server on a Windows 2000 Server Active Directory.
AD domain is : agence.a-b.com
Public domain, given by the ISP is : ab.com

All eMAIL adresses for users in the AD have been set as follows : joe@ab.com
(you see, we are using the public domain)

Exchange Client is : OutLook 2003.

Users can send and receive eMAIL internally (nice).
Users can send and receive eMAIL to and from Internet (nice).

PROBLEM
Users cannot reply the eMAILS they have received form Internet.
When a user tries to reply an SMTP eMAIL he has received from Internet,
automatically and immediatly he receives a NDR message : 550 5.7.1 Unable to
relay for name@domain.com.
name@domain.com is the Reply To Adress of the persons that has sent the
original message we are trying to reply.

I confirm users can sent with no problems to Internet, but they cannot reply.

And tehy can send, receive and reply internal (Global Adress List) eMAILs.

Any idea ?

Thanks !!!

PEP

Relevant Pages

  • Client can Send But Cannot Receive
    ... Exchange 2000 Server on a Windows 2000 Server Active Directory. ... Public domain, given by the ISP is: ... Users cannot reply the eMAILS they have received form Internet. ...
    (microsoft.public.exchange2000.general)
  • Client Can Send but Not Reply
    ... Exchange 2000 Server on a Windows 2000 Server Active Directory. ... Public domain, given by the ISP is: ... Users cannot reply the eMAILS they have received form Internet. ...
    (microsoft.public.exchange2000.general)
  • RE: Cant send or receive e-mail to POP3 users on same domain--HELP!
    ... Run the CEICW and go through the Internet and firewall option. ... If you choose to forward emails to the ISP's email server (smart ... Connector for POP3 Mailboxes' option, ... The Mailbox type is User Mailbox, and select the appropriate Exchange ...
    (microsoft.public.windows.server.sbs)
  • RE: Catchall not working, EXTERNALLY?
    ... When I open the connection (over internet) to my exchange account, ... the data is stored on the Exchange server side. ... Microsoft CSS Online Newsgroup Support ...
    (microsoft.public.windows.server.sbs)
  • Re: publications concerning port forwarding
    ... a postfix server in the DMZ and a MS Exchange ... services from the internet. ... The "OWA front-end in the DMZ using IPSec," comments were not on topic per ...
    (Pen-Test)
Loading