Great News!!!
http://clip2net.com/page/m0/400032

It worked. I created a new email address with my ISP. I asked them to change my smtp port from 465 to 25 (which they can & did).

I tested the email and it worked perfectly!!!

It would then appear to me that the problem was not my firewall, but rather my Exchange 2007 server. I suppose it doesn't matter which way it works, as long as it does.

Thank you all for your kind help.

-Todd

oops, perhaps I spoke too soon.
The 'test' worked to my att account.
I tried sending an order confirmation to an external address & it did not send. When sending from the que, it is immediate?

-Todd

OK, it appears that the only time it works is when the return address is the att.net account. I assume AT&T prevents us from sending from 'any' account, although I did verify customerservice@todds.com as a valid account.

http://clip2net.com/page/m0/401215

So now, anyone who replies to an email from adagio, will be sending the mail to my att.net account. hmmm.....

Any thoughts???

-Todd