There are in general two option:
1.) Use Pop3Poll, what is included as a service in SBS. You can download the mails to the server and assign them to a mailbox.
2.) SMTP forwarding. You setup an external MX record for your server and other servers can find your server to directly submit the mails.
Advantages:
1.) Save, as mails are stored at your provider until you pull then down
2.) Faster as mails are submitted as sent.
Disadvantages:
1.) You may have a delivery lag. Also somteime this service makes trouble with mails whith a non conform header. So it can happen, that you have to delete mail from time to time directly from the server of your provider.
2.) If your server is down, the mails can not be delivered (you should have a backup queue at your provider).
Mostly only working with static IP-Adresses and a reverse lookup setting for your server. As little mor effort for proper configuration.
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by: limjiananPosted on 2009-01-13 at 18:06:54ID: 23369441
website and exchange is different.
if you mean you have 1 exchange 2003 and you want to setup SBS 2003 at a different site (with different domain), i think POP3 connector will be good but you will have problem when you try to reply to user in the same organisation.
If the have exchange 2003, why not run RPC over https against that exchange instead utilising your own SBS 2003?