Apple Mac OS X Server Version 10.4 or Later Instrukcja Użytkownika Strona 53

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Chapter 1 Mail Service Setup 53
Enabling Virus Screening
Before you can benefit from mail screening, it must be enabled. While enabling
screening, you configure certain screening parameters.
Mac OS X Server uses ClamAV (www.clamav.net) to scan mail messages for viruses. If a
suspected virus is found, you can choose to deal with it several ways, as described
below. The virus definitions are kept up to date (if enabled) via the Internet using a
process called freshclam.
To enable virus screening:
1 In Server Admin, select Mail in the Computers & Services pane.
2 Click Settings.
3 Select the Filters tab.
4 Select Scan Email for Viruses.
5 Decide how to deal with junk mail messages.
Bounced: Will send the message back to the sender. You can optionally send an
email notification of the bounce to an email account (probably the domains
postmaster) and notify the intended recipient.
Deleted: Will delete the message without delivery. You can optionally send an email
notification to some email account, probably the postmaster, as well as the intended
recipient.
Quarantined: Will deliver the message to a directory for further analysis. You can
optionally send an email notification of the quarantine to some email account,
probably the postmaster.
6 Optionally, choose to notify the intended recipient if the message was filtered in some
way.
7 Choose how often to update the virus database, if desired.
A minimum of twice a day is suggested. Some administrators choose eight times a day.
8 Click Save.
Advanced Configuration Tools and Options
Mac OS X Server ships with some power tools to help administer you mail service.
These advanced configuration tools use the command line and require a basic
familiarity with working within a shell, and basic scripting concepts.
cyradm
The tool cyradm is included with Mac OS X Server. It is an administration shell for Cyrus,
the IMAP mail service package. It communicates with the Cyrus::IMAP::Admin Perl
module. Cyradm can be used to create, delete or rename mailboxes, as well as set ACLs
for mailboxes (for email clients that support them).
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