Руководство Пользователя для Cisco Cisco Email Security Appliance C650
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Cisco AsyncOS 8.0.1 for Email User Guide
Chapter 4 Understanding the Email Pipeline
Delivery
Messages released from quarantines are re-scanned for viruses.
See the “Quarantines” chapter of the Cisco IronPort AsyncOS for Email Daily Management Guide for
more information.
more information.
Delivery
The delivery phase of the Email Pipeline focuses on the final phase of email processing, including
limiting connections, bounces, and recipients.
limiting connections, bounces, and recipients.
Virtual gateways
The Cisco Virtual Gateway technology enables users to separate the Cisco appliance into multiple
Virtual Gateway addresses from which to send and receive email. Each Virtual Gateway address is given
a distinct IP address, hostname and domain, and email delivery queue.
Virtual Gateway addresses from which to send and receive email. Each Virtual Gateway address is given
a distinct IP address, hostname and domain, and email delivery queue.
For more information, see “Using Virtual Gateway™ Technology” in the “Configuring Routing and
Delivery Features” chapter of the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Delivery Features” chapter of the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Delivery Limits
Use the
deliveryconfig
command to set limits on delivery, based on which IP interface to use when
delivering and the maximum number of concurrent connections the appliance makes for outbound
message delivery.
message delivery.
For more information, see “Set Email Delivery Parameters” in the “Configuring Routing and Delivery
Features” chapter of the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Features” chapter of the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Domain-Based Limits
For each domain, you can assign a maximum number of connections and recipients that will never be
exceeded by the system in a given time period. This “good neighbor” table is defined through the Mail
Policies > Destination Controls page (or the
exceeded by the system in a given time period. This “good neighbor” table is defined through the Mail
Policies > Destination Controls page (or the
destconfig
command).
For more information, see “Controlling Email Delivery” in the “Configuring Routing and Delivery
Features” chapter in the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Features” chapter in the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Domain-Based Routing
Use the Network > SMTP Routes page (or the
smtproutes
command) to redirect all email for a particular
domain to a specific mail exchange (MX) host, without rewriting the envelope recipient.
For more information, see “Routing Email for Local Domains” in the “Configuring Routing and
Delivery Features” chapter of the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.
Delivery Features” chapter of the Cisco IronPort AsyncOS for Email Advanced Configuration Guide.