Apple Mac OS X Server (Administrator’s Guide) - Manual (Page 388)

388 Chapter 9
Sending Nonlocal Mail
If your mail service currently allows sending only local mail, you can change a setting to allow
sending mail to addresses outside your local network, including to the Internet.
To allow sending mail outside your local network:
1 In Server Settings, click the Internet tab.
2 Click Mail Service and choose Configure Host Settings.
3 Click the Outgoing Mail tab.
4 Choose “Allow outgoing mail” from the pop-up menu, then click Save.
Sending Only Local Mail
You can set your mail service to allow sending only messages that are addressed to recipients on
your local network. This setting prevents users from sending mail to addresses on the Internet.
To allow only local outgoing mail delivery:
1 In Server Settings, click the Internet tab.
2 Click Mail Service and choose Configure Host Settings.
3 Click the Outgoing Mail tab.
4 Choose “Limit to local users” from the pop-up menu, then click Save.
If you limit outgoing mail to local users, all the options in the Outgoing Mail pane are
disabled because they are not relevant to local outgoing mail.
Suspending Outgoing Mail Service
You can prevent the mail service from sending new outgoing mail. You could do this to
isolate a problem, or to prevent conflicts with other mail service running on your network.
To suspend outgoing mail service:
1 In Server Settings, click the Internet tab.
2 Click Mail Service and choose Configure Mail Service.
3 Click the Protocols tab and choose Use None from the pop-up menu.
4 Click Save.