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You can use the Internet Mail Service to exchange information with foreign systems that use SMTP.
The Internet Mail Service is a component of Microsoft Exchange Server that runs as a Windows NT Server service. When connecting to the Internet, many organizations have security concerns. Consult with your network administrators about how to ensure the security of your systems.
SMTP hosts on the Internet will need access to Port 25 on the Internet Mail Service servers in your organization. Your organization's Internet Mail Services will also require access to Port 25 on SMTP hosts on the Internet.
There are many Domain Name System (DNS) setup issues that you may need to address before connecting to the Internet. Consult with your network administrators.
Before using the Internet Mail Service, consider the following issues: