Re: Need help configuring Exchange Server for outgoing messages
- From: "Rich Matheisen [MVP]" <richnews@xxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 24 Apr 2008 22:24:42 -0400
Robarb <Robarb@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Yesterday, AT&T changed their SMTP servers to now require SSL authentication,
Are you sure they require SSL and not TLS? And that they require the
certificates to be used for authentication and not just a
userid/password (i.e. use AUTH)?
which Exchange Server doesn't seem to be able to do.
Exchange can use TLS, and it can use AUTH. You'll need an SSL
certificate for your machine, though.
As a result, we haven't
been able to send any emails for 2 days. And AT&T was no help by phone.
I need to either figure out how to get Exchange to communicate with the AT&T
smtp server using SSL,
1. Get a SSL certificate
2. Install the cert.
3. Add the cert to the SMTP Virtual Server
4. Add a SMTP Connector to your routing group
5. Config the SMTP Connector to send your mail to the ATT smart host
6. Config the SMTP Connector to require TLS.
You probably have your SMTP Virtual Server configured to deliver mail
to the smart host. That's not a good idea. Use the SMTP Connector
instead.
or delve into the world of sending emails using DNS.
That's actually the easy thing to do. Of course, ATT may not allow you
to use port 25 except to connect to their relay servers.
I'm not sure how to configure Exchange (or MX records, etc.) to do this. Is
it difficult to set up Small Business Server 2003 to send emails without
needing an outside smtp server?
Don't know about SBS, but using a SMTP Connector is pretty easy. And
delivering email to the target servers is the default configuration.
Again, don't forget to remove the smart host stuff from your SMTP
Virtual Server.
If you don't host your own DNS then you'll have your ISP (ATT?) add
the MX to your DNS zone on their DNS servers.
--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
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