RE: Exchange 5.5 & Preventing Mail Relay

[Javier Gonzalez]

Title: Message

In:
http://www.exchangeadmin.com/Articles/Index.cfm?ArticleID=7696
you've got the document:
Is Your Exchange Server Relay-Secure? 
apply all that, it's definitive. 
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  J. Javier Gonzalez,  mcse.w2000/nt4  mcp+i 
   IT Dept
   Data-Set, s.l.   Madrid  (Espa�a) (Spain)
   Doctor Castelo, 10-3�d  +34 915 738 002 / 03
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-----Mensaje original-----
De: Adil Hindistan [mailto:[EMAIL PROTECTED]]
Enviado el: mi�rcoles, 26 de septiembre de 2001 14:45
Para: NT System Admin Issues
Asunto: RE: Exchange 5.5 & Preventing Mail Relay

Hi,

 

I had gone through the same hassle of reading everything and came up with the following to resolve the issue:

 

- In the MS Exchange Administrator, open CONNECTIONS > INTERNET MAIL SERVICE properties

 

- In the ROUTING Tab, choose "Reroute incoming SMTP mail (Required for POP3/SMTP)

 

- if not already added, add you domains to the list in the form of xyz.com

 

- Click the Routing Restrictions and select the two checkboxes at the top, namely:

1- Hosts and clients that successfully authenticate   &

2- Hosts and Clients with these IP addresses

 

That's it. You may ask why you dont put any IP address. Ugh, I just don't remember what was the reason but I am 100% sure that this was a trick to do it right!

 

Adil Hindistan

ICQ:26477783

 

 

-----Original Message-----
From: Abercrombie, Sherry [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 26, 2001 3:15 PM
To: NT System Admin Issues
Subject: Exchange 5.5 & Preventing Mail Relay

Hi all,

I've got a situation that I need to resolve & would like to do it without having to call MS :)

I have Exchange 5.5 sp 4 (NT 4.0 sp 6), that has routing enabled for POP3/IMAP4 support.  I have gone through every MS Tech Net article that I can find on how to setup Exchange to not relay mail and have not been able to get it setup correctly.  Right now there is an outsourced Linux box in front of the Exchange server that checks for mail being relayed.  My organization wants to get rid of that box because we are paying a monthly fee for it that should be unnecessary because Exchange is supposed to be able to do this.

If anyone has any input/experience/advice on this I would really appreciate it.

Sherry Abercrombie

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