RE: SMTP Relay Server and Mail Aliases

  • From: "Andrew English" <andrew@xxxxxxxxxxxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 11 Nov 2004 09:09:52 -0500

Do not open SMTP to the entire internet people from other parts of the
world port scan companies looking for ways to send their spam without
getting caught, and the last thing your boss wants to hear is how you
opened SMTP rely to the internet which allows some bozo from another
country to use it has his spam rely point.

Simply open port 25 TCP to the net and have it point to your front end
Exchange, then make sure that only people on your network including
windows authentication users can use SMTP. 


-----Original Message-----
From: Mustafa Cicek [mailto:mbcicek@xxxxxxxxx] 
Sent: Thursday, November 11, 2004 4:13 AM
To: [ExchangeList]
Subject: [exchangelist] SMTP Relay Server and Mail Aliases

I have front-end and back-end Exchange 2003.
I do not want that my front-end Exchange has SMTP relay functionality.
I want to deploy a SMTP relay server in DMZ.

My problem is:
This SMTP relay server is not a member of my Exchnage AD domain and does
not know about mail aliases in my Exchange domain. I do not want that I
open additional ports on firewall which is between my Exchange domain
SMTP mail relay.

My question is:
How can I inform that SMTP relay server knows about all mail aliases on
Exchange domain?

Best Regards

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