Apple Mac OS X Server Migration For Version 10.3 or Later Uživatelský manuál stáhnout pdf (Strana 37)

Chapter 2 Mail Service Maintenance 37

Specifying the Location for the Mail Database and Mail Store

If you are starting mail service for the first time and you have no existing mail database,

you can specify where the mail database and message files will be stored. By default

mail database location is /var/imap/ and the mail store location is /var/spool/imap/.

To specify where mail is stored on the server:

1 If mail service is already running, stop the mail service. See “Starting and Stopping Mail

Service” on page 33 for details.

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

3 Click Settings.

4 Click the Advanced tab.

5 Enter the path of the location where you want the mail files to be stored in the “Mail

store” field.

You can browse for a location by clicking Browse next to the location field.

6 Restart or reload mail service.

When mail service starts for the first time, it creates an empty mail store at the default

location. You can ignore this or delete it after you have specified an alternate mail

storage location and restarted mail service.

Note: Changing the mail store location of an existing mail system does not move the

mail from the old location to the new one.

Backing Up and Restoring Mail Messages

You can back up the mail service data by making a copy of the mail service folder. If

you need to restore the mail service data, you can replace the mail service folder with a

backup copy. You can back up individual mail storage folders, or the entire mail store,

as needed. One command line tool that can be used to back up your mail messages is

ditto. See ditto’s man page for information.

Important: Stop mail service before backing up or restoring the mail service folder. If

you back up the mail service folder while mail service is active, the backup mail

database file may go out of sync with the backup folder. If you restore while mail

service is active, the active mail database file might go out of sync with the active

folder.

An incremental backup of the mail service folder can be fast and efficient. If you back

up your mail data incrementally, the only files copied are the small database file and

the message files that are new or changed since the last backup.

After restoring the mail service folder, notify users that messages stored on the server

have been restored from a backup copy.

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Apple Mac OS X Server Migration For Version 10.3 or Later Uživatelský manuál Strana 37