IronPort - advanced configuration guide

Chapter 2 Configuring Routing and Delivery Features
Table 2-12 Email Pipeline for the Cisco IronPort Appliance: Routing and Delivery Features
Work Queue
LDAP Recipient Acceptance LDAP validation for recipient acceptance
occurs within the work queue. If the recipient
is not found in the LDAP directory, the
message is dropped or bounced. LDAP
validation can be configured to occur within
the SMTP conversation instead.
Masquerading
Masquerading occurs in the work queue; it
or LDAP Masquerading
rewrites the Envelope Sender, To:, From:,
and/or CC: headers, from a static table or via
an LDAP query.
LDAP Routing LDAP queries are performed for message
routing or address rewriting. Group LDAP
queries work in conjunction with message
filter rules mail-from-group and
rcpt-to-group.
Message Filters* Message Filters are applied prior to message
“splintering.” * Can send messages to
quarantines.
Anti-Spam**
Anti-spam scanning engine examines
messages and returns a verdict for further
processing.
Anti-Virus* Anti-Virus scanning examines messages for
viruses. Messages are scanned and optionally
repaired, if possible. * Can send messages to
quarantines.
Content Filters* Content Filters are applied. * Can send
messages to quarantines.
Outbreak Filters* The Outbreak Filters feature helps protect
against virus outbreaks. * Can send messages
to quarantines.
Virtual gateways Sends mail over particular IP interfaces or
groups of IP interfaces.
Delivery limits 1. Sets the default delivery interface.
OL-25137-01
Per Recipient Scanning
2. Sets the total maximum number of
outbound connections.
Domain-based Limits Defines, per-domain: maximum outbound
connections for each virtual gateway and for
the entire system; the bounce profile to use;
the TLS preference for delivery:
no/preferred/required
Domain-based routing Routes mail based on domain without
rewriting Envelope Recipient.
Cisco IronPort AsyncOS 7.6 for Email Advanced Configuration Guide
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