Re: Getting Exchange to send and receive Internet E-mail

  • From: Thomas Brennan <tbrennan@xxxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 14 May 2002 09:50:36 -0400

Nice, step by step Matt

At Tuesday, 14 May 2002, you wrote:

>>From your descriptive message, I am going to have to assume a few
>things, like is Exchange installed correctly, or is DNS setup correctly,

>or are there any firewall issues...
>Make sure the following work in this order:
>- Make sure TCP/IP is installed on your exchange server.
>- Test to see if your exchange server surf the internet.
>- Make sure that any firewall is allowing port 25 thru in both
>directions.  Also, if you are behind a proxy server, make sure that is
>setup correctly.
>- Can you connect to the internet on any port number from your exchange
>server (try this cmd: "telnet 25" and see if you 
get a
>220 response - if not, then you probably cannot connect to's
>mail server to send a user there e-mail.)
>- On a computer that is on the same network as your exchange server,
>what happens if you do a "telnet <ip addy of exch server> 25" - that
>SHOULD work.  If it doesn't, then you have issues with your exchange
>server and SMTP.
>- I am going to assume that your external DNS is setup correctly and
>working fine.  Then have a friend try the same command as above, except
>replace the "" with your FQDN for your mail server.
>For instance, if your mail server is, then your friend
>would need to type "telnet 25" from a computer that can
>fully see the internet.
>- Once you get to the point where your exchange server is responding to
>an external request for SMTP, then you need to make sure you have a
>place for a user's e-mail to go.  See if your friend can send a message
>to administrator@xxxxxxxxxx (again, assuming the MX record for your DNS
>is working properly) - connect to your exchange server with Outlook,
>If things are still not working, e-mail us back, but tell us what DOES
>work, as well as what DOESN'T work, and any steps you may have tried.
>-----Original Message-----
>From: Wagner R. de Souza [mailto:warnerr@xxxxxxxxx] 
>Sent: Monday, May 13, 2002 4:45 PM
>To: [ExchangeList]
>Subject: [exchangelist] Re: MSExchange Outsourcing
>I need to know, how to configure o Exchange Server for to receive 
and to
>send external messages.
>Please, help me!!!!
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