Руководство Пользователя для Cisco Cisco Content Security Management Appliance M160

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12-6
AsyncOS 8.3.5 for Cisco Content Security Management User Guide
 
Chapter 12      Configuring SMTP Routing
  Managing SMTP Routes
SMTP Routes and DNS
Use the special keyword 
USEDNS
 to tell the appliance to do MX lookups to determine next hops for 
specific domains. This is useful when you need to route mail for subdomains to a specific host. For 
example, if mail to example.com is to be sent to the company’s Exchange server, you might have 
something similar to the following SMTP route: 
example.com exchange.example.com
However, for mail to various subdomains (foo.example.com), add an SMTP route that looks like this: 
.example.com USEDNS
Ethernet interface: Data 2
IP interface: PublicNet (e.g. 192.168.2.1)
Public Listener: InboundMail 
SMTP
Email 
Security appliance
The 
smtproutes
 command was 
used to route mail accepted on the 
public listener InboundMail for 
example.com 
to the host 
exchange.example.com
Ethernet interface: Data 1
IP interface: PrivateNet (e.g. 192.168.1.1)
Host Access Table (HAT):
WHITELIST:      $TRUSTED 
BLACKLIST:      $BLOCKED
SUSPECTLIST:    $THROTTLED
UNKNOWNLIST:    $ACCEPTED
spamdomain.com  REJECT
.spamdomain.com REJECT
251.192.1.      TCPREFUSE
169.254.10.10   RELAY
ALL:            $ACCEPTED
exchange.example.com