RE: SMTP quires

  • From: "Mark Fugatt" <markfu@xxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 14 Jul 2005 10:45:56 +0100

1. You can't
2. Make sure they have the have configured Outlook Express to
authenticate with the outgoing server, you can do this by going to the
Servers tab in the Outlook Express account properties and checking the

Mark Fugatt 
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From: Praveen Ramaswamy [mailto:ramaswamy_praveen@xxxxxxxxx] 
Sent: 14 July 2005 10:36
To: [ExchangeList]
Subject: [exchangelist] SMTP quires 

Hi ,


I have two quires:


1.      How do I restrict users from teleneting to port 25 on my
Exchange 2003 server for sending out mails? 
2.      What should be done on the Exchange 2003 server to allow
authorized uses to send out mails to outside world by using a POP3
client (e.g Outlook Express).


Currently people can telnet to my exchange server and mail to other
users in the exchange organization by giving any FROM address. Also by
using Outlook express people are not able to relay mails to outside
world. I want only authenticated users to relay mails.



Praveen R


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