Руководство Пользователя для Cisco Cisco Email Security Appliance C170
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Cisco IronPort AsyncOS 7.5 for Email Configuration Guide
OL-25136-01
Chapter 5 Configuring the Gateway to Receive Email
Step 2
Use SMTP commands to send a test message with a malformed MAIL FROM
(something like “admin” without a domain).
(something like “admin” without a domain).
Note
If you have configured your Cisco IronPort appliance to use a default
domain or to specifically allow partial domains when sending or receiving
email or if you have enabled address parsing (see “Customizing
Listeners” in the Cisco IronPort AsyncOS for Email Advanced
Configuration Guide) you may not be able to create, send, and receive an
email with a missing or malformed domain.
domain or to specifically allow partial domains when sending or receiving
email or if you have enabled address parsing (see “Customizing
Listeners” in the Cisco IronPort AsyncOS for Email Advanced
Configuration Guide) you may not be able to create, send, and receive an
email with a missing or malformed domain.
Step 3
Verify that the message is rejected.
Note that the SMTP code and response is the one you configured for the envelope
sender verification settings for the THROTTLED mail flow policy.
sender verification settings for the THROTTLED mail flow policy.
Testing the Sender Verification Exception Table
To confirm that mail from the email address listed in the sender verification
exception table is not subject to envelope sender verification:
exception table is not subject to envelope sender verification:
Step 1
Add the following address to the exception table with an “Allow” behavior:
admin@zzzaaazzz.com
admin@zzzaaazzz.com
Step 2
Commit your changes.
Step 3
Open a Telnet session to your Cisco IronPort appliance.
# telnet IP_address_of_IronPort_Appliance port
220 hostname ESMTP
helo example.com
250 hostname
mail from: admin
553 #5.5.4 Domain required for sender address