Apple Mac OS X Server Migration For Version 10.3 or Later Manuel d'utilisateur télécharger pdf (Page 21)

Chapter 1 Mail Service Setup 21

Enabling Less Secure IMAP Authentication

Your IMAP mail service can supply users’ passwords by less secure means. These

authentication methods are less secure because they don’t securely encrypt your users’

passwords as they cross the network.

To allow login, plain, or clear IMAP authentication:

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

2 Click Settings.

3 Select the Advanced tab.

4 Check LOGIN, PLAIN, or Clear in the IMAP list.

Controlling the Number of IMAP Connections

You can adjust the load put on your server by limiting the number of concurrent IMAP

connections.

To limit IMAP connections:

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

2 Click Settings.

3 Select the General tab.

4 Click Enable IMAP, if it isn’t already checked.

5 Enter the number of concurrent connections you want to allow, then click Save.

The default setting is 32, and the maximum is 300.

Configuring SSL Transport for IMAP 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 the Open Directory

administration guide for more information on enabling SSL.

Requiring SSL transport for IMAP also requires it for POP.

To configure SSL transport for IMAP connections:

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

2 Click Settings.

3 Select the Advanced tab.

4 Click Require, Use, or Don’t Use (as desired) in the IMAP and POP SSL section.

5 Click Save.

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Apple Mac OS X Server Migration For Version 10.3 or Later Manuel d'utilisateur Page 21