Руководство Пользователя для Cisco Cisco Email Security Appliance C670
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Cisco IronPort AsyncOS 7.5 for Email Advanced Configuration Guide
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Chapter 2 Configuring Routing and Delivery Features
The Domain Map Feature
You can configure a “domain map” for listeners. For each listener you configure,
you can construct a domain map table which rewrites the Envelope Recipient for
each recipient in a message that matches a domain in the domain map table. This
feature is similar to the sendmail “Domain Table” or Postfix “Virtual Table”
feature. Only the Envelope Recipient is affected; the “To:” headers are not
re-written by this feature.
you can construct a domain map table which rewrites the Envelope Recipient for
each recipient in a message that matches a domain in the domain map table. This
feature is similar to the sendmail “Domain Table” or Postfix “Virtual Table”
feature. Only the Envelope Recipient is affected; the “To:” headers are not
re-written by this feature.
Note
The processing of the domain map feature happens immediately before the RAT
and right after Default Domain is evaluated. Refer to “Understanding the Email
Pipeline” in the Cisco IronPort AsyncOS for Email Configuration Guide.
and right after Default Domain is evaluated. Refer to “Understanding the Email
Pipeline” in the Cisco IronPort AsyncOS for Email Configuration Guide.
A common implementation of the domain map feature is to accept incoming mail
for more than one legacy domain. For example, if your company has acquired
another company, you could construct a domain map on the Cisco IronPort
appliance to accept messages for the acquired domain and rewrite the Envelope
Recipients to your company’s current domain.
for more than one legacy domain. For example, if your company has acquired
another company, you could construct a domain map on the Cisco IronPort
appliance to accept messages for the acquired domain and rewrite the Envelope
Recipients to your company’s current domain.
Note
You can configure up to 20,000 separate, unique domain mappings.
Table 2-4
Domain Map Table Example Syntax
Left Side
Right Side
Comments
username@example.com
username2@example.net
Only complete address
for the right side
for the right side
user@.example.com
user2@example.net
@example.com
user@example.net
or
@example.net
Complete address or
fully-qualified domain
name.
fully-qualified domain
name.
@.example.com
user@example.net
or
@example.net