Cisco Cisco Email Security Appliance C170 사용자 가이드

SMTP Authentication can also be used to provide validation for an outbound mail relay, using a 
username and password. Create an ‘outgoing’ SMTP authentication profile and then attach the profile to 
an SMTP route for the ALL domain. On each mail delivery attempt, the Cisco IronPort appliance will 
log on to the upstream mail relay with the necessary credentials. Only a PLAIN SASL formatted login 
is supported.

To use SMTP Authentication for all outgoing mail:

Click the Network > SMTP Authentication link. The SMTP Authentication page is displayed. 

Click the Add Profile link. The Add SMTP Authentication Profile: SMTP Authentication Profile 
Settings page is displayed. Enter a unique name for the SMTP authentication profile. Select ‘Outgoing’ 
for the Profile Type. Click the Next button.

Enter an authentication username and password for the authentication profile. Click the Finish 
button. The SMTP Authentication Profiles page is displayed with the new outgoing profile. 

Click the Network > SMTP Routes link. The SMTP Routes page is displayed.

Enter the SMTP code to use in the response. 550 is the standard code.

[550]> 551

Enter your custom SMTP response. Press Enter on a blank line to finish.

Sender rejected due to local mail policy.

Contact your mail admin for assistance.