I have Windows XP on my computer and Exchange 2003 which is fully patched. The ISP which i use blocks all the port 25 traffic rather than their SMTP server. The setup which i have currently has all the email which is being forwarded to their SMTP server by using the smart host setting with the default smtp server and the smtp connector. So i wanted to change the host of the domain's SMTP server to the ISP's SMTP server which is being blacklisted by most of the spam filters. So i need some help for forwarding emails to the port 25 server.
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