Exchange 2003 server but ALL sent mail should use ISP.

[PiMMeL]

Hi,

I am still struggling with this because I think it should be possible. I have a domain as jupitar.com. So the exchange server handles all email for this domain. So if you send an email to johndoe@jupitar.com it will direct it directly into his mailbox. So far so good. Now I have some external workers that also have an email like sales@jupitar.com. These external email addresses are hosted on our ISP because we don't want to put the exchange server on the live internet yet.
So here comes the trouble If anyone tries to email someone out of the office it gets bounced back right away because ofcourse the exchange server thinks it is a local address but this user does not exist.
I have one of the users setup by forwarding all her email to her personal address so that works but it is not the way it should be I think.
I there a way with local DNS MX records where I can make the ISP's mail server have a higher priority so all mail gets forwarded out there before it checks if there is a local user with that address on our local server?

I am just trying to solve this as a bet with my boss. He wants me to go around and add the POP info to each workstation and "kill" the exchange server. But we paid for it so why not use it.

Thanks so much for any response.

Pim

 

[xmsre]

You're sharing the same smtp namespace with your ISP. On the properties of your smtp connector, forward unresolved mail to smarthost [IP of your ISP].

 

[PiMMeL]

That would be my ultimate solution. Thanks for the super fast reply too btw.
I looked around on my SMTP connector which I use to send mail to my ISP so we don't get weird spam errors after reverse lookup at the receiver end.

But I don't see an option about undeliverable messages send through SMTP. Where do I find that?

Thanks again.

Pim

 

[xmsre]

I said SMTP connector, I meant SMTP virtual server. On the messages tab uner "Forward all mail with unresolved recipients to host" put the IP in square brackets, ie. [127.0.0.1]

 

[BottleWasher]

I did the above for an Exchange 2003 server -- it works great.

Can this be done on a 5.5 server? If so, how? My ISP is SBC and the SMTP server is smtp.sbcglobal.yahoo.com.

Thanks -
bw