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Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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Cisco AsyncOS 8.0.2 for Email User Guide
 
Chapter 7      Defining Which Hosts Are Allowed to Connect Using the Host Access Table (HAT)
  Verifying Senders
Note
If you have configured your Cisco 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.
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.
Sending a Message from an Address That is Excluded from Sender Verification Rules
To confirm that mail from the email address listed in the sender verification exception table is not subject 
to envelope sender verification:
Procedure 
Step 1
Add the following address to the exception table with an “Allow” behavior: 
admin@zzzaaazzz.com
Step 2
Commit your changes.
Step 3
Open a Telnet session to your Cisco appliance.
Step 4
Use SMTP commands to send a test message from the email address you entered in the sender 
verification exception table (admin@zzzaaazzz.com).
Step 5
Verify that the message is accepted.
# 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
# telnet IP_address_of_IronPort_Appliance port
220 hostname ESMTP
helo example.com
250 hostname
mail from: admin@zzzaaazzz.com
250 sender <admin@zzzaaazzz.com> ok