PureMessage for UNIX - Sophos
PureMessage for UNIX - Sophos
PureMessage for UNIX - Sophos
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sophos pureMessage <strong>for</strong> unix<br />
In addition to spam and virus protection, <strong>PureMessage</strong> features include:<br />
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Blocking large attachments or attachments of certain types by granular<br />
true file type detection, regardless of extension or content type header.<br />
Adding disclaimers to outbound mail.<br />
Checking <strong>for</strong> keywords, phrases, and credit card numbers.<br />
Encrypting messages using TLS or routing messages to third-party endto-end<br />
encryption solutions.<br />
The Policy Manager is typically used <strong>for</strong>:<br />
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Email filter policy management.<br />
Setting the spam thresholds and policy.<br />
Managing allow lists, block lists, and opt-out lists.<br />
<strong>PureMessage</strong> allows you to create dynamic policies that use in<strong>for</strong>mation stored<br />
in LDAP systems. This can simplify the ongoing maintenance of complex<br />
policies. Extensible architecture also allows you to integrate <strong>PureMessage</strong> with<br />
existing archiving, encryption, or access control systems.<br />
tests and actions<br />
The Policy Constructor lists all the available test and action options, and defines<br />
which specific tests and actions to take when a certain rule is applied.<br />
For example, the Quarantine and Deliver rule applies two actions to the<br />
message if <strong>PureMessage</strong> assigns a spam probability greater than 50%:<br />
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A hidden x-header is added to the message, listing the spam probability<br />
and rules that were hit.<br />
A copy of the message is placed in the quarantine.<br />
Figure 9: Configuring a spam-probability test<br />
Managing policy<br />
The Policy Manager is<br />
used to define spam and<br />
control how messages are<br />
handled.