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by: SplinterCell5894Posted on 2006-12-19 at 10:26:51ID: 18167701
To receive mail (assuming that you will now be handling all of your domain's mail; and not the service provider):
1. Reserve a public IP address for your Exchange server and map it on your firewall (talk to your ISP)
2. Make sure that SMTP can get to your Exchange server via a public IP address (configure on your firewall)
3. Have your ISP create an A record in DNS for the public IP address for Exchange
4. Have your ISP create an MX record in DNS for the A record for Exchange
To receive mail (assuming that your ISP will handle some of your mail for your domain):
1. Tell your ISP what you want to do and have them configure their server accordingly (to forward mail for mailboxes not hosted on their server)
2. Reserve a public IP address for your Exchange server and map it on your firewall (talk to your ISP)
3. Make sure that SMTP can get to your Exchange server via a public IP address (configure on your firewall)
To send all mail through your ISP's SMTP server:
1. Find the SMTP Virtual Sever in your Exchange server's System Manager
2. Right-click and go to Properties
3. Click on the Delivery tab
4. Click on the Advanced button
5. Put the ISP's mail server's FQDN in the Smarthost field
6. Make sure your ISP will allow you to relay through their server (this should have been step 1)
That's pretty much it.
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