Authenticating e-mail for local and relay

You can now prevent your server from spam by requiring authentication to send e-mail. You cannot require authentication if you want to restrict relaying messages. It is recommended that you set up authentication for your server.

To enable authentication for your server, complete these steps:
  1. In IBM® Navigator for i, expand Network > Servers > TCP/IP Servers.
  2. Right-click SMTP and selectProperties .
  3. Click the Authentication tab and set the field values indicated in the Then perform the following action column.
    Click this tab Then perform the following action
    Authentication If you want the server to use TLS/SSL to authenticate it locally and when relaying the messages, select Require TLS/SSL and authenticate it locally and when using the relay.
    Authentication If you want the server to use TLS/SSL to authenticate it only when using the relay function, select Require TLS/SSL and authenticate only the relay.
    Authentication If you want to permit only the users on the authorized list to log on to SMTP, select Verify IDs on local delivery.
    Authentication If you want the SMTP server to allow the mail server framework (MSF) snap-in functions to reject an e-mail that is not verified, select Verify message originator.
    Authentication If you want the SMTP server to verify whether the e-mail address of the sender is in the system distribution directory and if the addresses match, select Users or Users not on the accept list. The users whose e-mail addresses cannot be matched are rejected.
  4. Click OK to accept the changes.