Cisco Cisco Email Security Appliance C650 Guía Del Usuario
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Cisco AsyncOS 8.0.1 for Email User Guide
Chapter 9 Using Message Filters to Enforce Email Policies
Message Filter Actions
To send to multiple hosts, you can call the
bcc()
action multiple times:
The bcc-scan() Action
The
bcc-scan
action functions similarly to the bcc action, except that the message that is sent is treated
as a brand new message and is therefore sent through the entire email pipeline.
Quarantine and Duplicate Actions
The
quarantine(‘quarantine_name’)
action flags a message for inclusion into a queue called a
quarantine. For more information about quarantines, see the “Quarantines” chapter. The
duplicate-quarantine
(
‘quarantine_name’)
action immediately places a copy of the message into the
specified quarantine and the original message continues through the email pipeline. The quarantine name
is case sensitive.
is case sensitive.
When flagged for quarantine, the message continues through the rest of the email pipeline. When the
message reaches the end of the pipeline, if the message has been flagged for one or more quarantines
then it enters those queues. Otherwise, it is delivered. Note that if the message does not reach the end of
the pipeline, it is not placed in a quarantine.
message reaches the end of the pipeline, if the message has been flagged for one or more quarantines
then it enters those queues. Otherwise, it is delivered. Note that if the message does not reach the end of
the pipeline, it is not placed in a quarantine.
Accordingly, if a message filter contains a
quarantine()
action followed by a
bounce()
or
drop()
action, the message will not enter the quarantine, since the final action prevents the message from
reaching the end of the pipeline. The same is true if a message filter includes a quarantine action, but the
message is later dropped by anti-spam or anti-virus scanning, or a content filter. The
reaching the end of the pipeline. The same is true if a message filter includes a quarantine action, but the
message is later dropped by anti-spam or anti-virus scanning, or a content filter. The
skip-filters()
action causes the message to skip any remaining message filters, but content filters may still apply. For
example, if a message filter flags a message for quarantine and also includes the
example, if a message filter flags a message for quarantine and also includes the
skip-filters()
action,
the message skips all remaining message filters and will be quarantined, unless another action in the
email pipeline causes the message to be dropped.
email pipeline causes the message to be dropped.
multiplealthosts:
if (recv-listener == "IncomingMail")
{
insert-header('X-ORIGINAL-IP', '$remote_ip');
bcc ('$EnvelopeRecipients', '$Subject', '$EnvelopeFrom', '10.2.3.4');
bcc ('$EnvelopeRecipients', '$Subject', '$EnvelopeFrom', '10.2.3.5');
bcc ('$EnvelopeRecipients', '$Subject', '$EnvelopeFrom', '10.2.3.6');
}
momFilter:
if ((mail-from == '^johnny$') and (rcpt-to == '^sue$'))
{
bcc-scan('mom@home.org');
}