Apple Mac OS X Server Version 10.4 or Later Uživatelský manuál stáhnout pdf (Strana 34)

34 Chapter 1 Mail Service Setup

Enabling Less Secure SMTP Authentication

Your server can guard against being an open relay by requiring SMTP authentication.

(An open relay indiscriminately relays mail to other mail servers.) Requiring

authentication ensures that only known users—people with user accounts on your

server—can send mail from your mail service. You can choose to require, allow, or

disallow less secure authentication methods (plain text, or login) for SMTP mail service.

Plain authentication sends mail passwords as plain text over the network. Login

authentication sends a minimally secure crypt hash of the password over the network.

If you want to require any of these authentication methods, enable only one method.

To allow less secure authentication:

1 In Server Admin, select Mail in the Computers & Services pane.

2 Click Settings.

3 Select the Advanced tab.

4 Select Security.

5 Check either Plain or Login in the SMTP section.

6 Click Save.

Configuring SSL Transport for SMTP Connections

SSL transport enables mail transmitted over the network to be securely encrypted. You

can choose to Require, Use, or Don’t Use SSL for IMAP connections. Before using SSL

connections, you must have a security certificate for mail use.

See “Certificate Manager in Server Admin” on page 95 to for more information about

Certificates.

To configure SSL transport for SMTP connections:

1 In Server Admin, select Mail in the Computers & Services pane.

2 Click Settings.

3 Select the Advanced tab.

4 Select Security.

5 Click Require or Use to enable (Don’t Use to disable) in the SMTP SSL section.

6 Select the Certificate you want to use from the corresponding pop-up menu, if you are

using or requiring SSL.

7 Click Save.

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Apple Mac OS X Server Version 10.4 or Later Uživatelský manuál Strana 34