Cisco Cisco Email Security Appliance C170 Guia Do Utilizador
5-175
Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
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 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.
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 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