>I have a developer who has developed software that would allow our users to send out email to our corp office. The problem is that he's using mapi to send the emails out. We can't require all the users to purchase ms outlook in order to use the program. Can anyone provide a solution? What about smtp?
>

West-Wind Internet Protocols gives the ability to use SMTP:

http://www.west-wind.com/wwstore/item.wws?sku=WWIPSTUFF