Cisco Cisco Content Security Management Appliance M1070 Guía Del Usuario
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AsyncOS 9.0 for Cisco Content Security Management Appliances User Guide
Chapter 12 Configuring SMTP Routing
Managing SMTP Routes
When you print the SMTP Routes entries, the default SMTP route is listed as
ALL:
. You cannot delete
the default SMTP route; you may only clear any values entered for it.
Configure the default SMTP route using the Management Appliance > Network > SMTP Routes page
or the smtproutes command.
or the smtproutes command.
Managing SMTP Routes
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Defining an SMTP Route
The Email Security appliance routes mail to local domains to hosts specified using the Management
Appliance > Network > SMTP Routes page (or the smtproutes command). This feature is similar to
the sendmail mailer table feature. (The SMTP Routes page and smtproutes command are an expansion
of the AsyncOS 2.0 Domain Redirect feature.):
Appliance > Network > SMTP Routes page (or the smtproutes command). This feature is similar to
the sendmail mailer table feature. (The SMTP Routes page and smtproutes command are an expansion
of the AsyncOS 2.0 Domain Redirect feature.):
Use the Management Appliance > Network > SMTP Routes page (or the smtproutes command) to
construct routes. When you create a new route, you first specify the domain or partial domain for which
you want to create a permanent route. You then specify destination hosts. Destination hosts can be
entered as fully-qualified hostnames or as IP addresses. You can also specify a a special destination host
of
construct routes. When you create a new route, you first specify the domain or partial domain for which
you want to create a permanent route. You then specify destination hosts. Destination hosts can be
entered as fully-qualified hostnames or as IP addresses. You can also specify a a special destination host
of
/dev/null
to drop the messages that match the entry. (So, in effect, specifying
/dev/null
for the
default route is will ensure that no mail received by the appliance is ever delivered.)
Multiple destination host entries can contain both fully-qualified hostnames and IP addresses. Separate
multiple entries with commas.
multiple entries with commas.
If one or more of the hosts are not responding, messages will be delivered to one of the reachable hosts.
If all the configured hosts are not responding, mail will be queued for that host (does not fail over to
using MX records).
If all the configured hosts are not responding, mail will be queued for that host (does not fail over to
using MX records).
SMTP Routes Limits
You can define up to 10,000 routes. The final default route of
ALL
is counted as a route against this limit.
Therefore, you can define up to 9,999 custom routes and one route that uses the special keyword
ALL
.
Adding SMTP Routes
Procedure
Step 1
On the Security Management appliance, choose Management Appliance > Network > SMTP Routes.
Step 2
Click Add Route.