Setting up Exchange 2003 to work with a dynamic IP address

Experts, I need assistance with Exchange 2003.  I would like to know how to setup Exchange 2003 to work with a dynamic IP address.  Everytime I try and send an email from the inside out, hotmail bounces back an error message stating that it does not receive emails with dynamic IP addresses.  Could someone help me setup (step by step)  exchange to work with a dynamic ip?  
I have tried using dyndns, but that is confusing me too.  
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MesthaConnect With a Mentor Commented:
I wrote this article on how to do use Exchange with a dynamic IP address:

You basically will need to use an SMTP Connector to route outbound email through your ISPs SMTP server.

most mail servers wont send to an IP address that is a dynamic IP address.  You are going to need a static IP to receive mail.
NoviceITAuthor Commented:
Right now I am able to send from my hotmail account to without any problems.  One problem that I am having right now is sending from to my hotmail account.  I receive the following message (attached file).
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NoviceITAuthor Commented:
Okay, how do I route outbound email through my ISPs SMTP?  Could you explain in detail?  
ryan80Connect With a Mentor Commented:
its in his article.  There is a link to this page which has step by step directions.
NoviceITAuthor Commented:
Thanks guys!  Links were excellent.
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