Cisco Cisco Email Security Appliance C170 User Guide
21-46
Cisco AsyncOS 8.0.2 for Email User Guide
Chapter 21 Configuring Routing and Delivery Features
Controlling Email Delivery Using Destination Controls
The following example shows a configuration file for the domains example1.com and example2.com
along with the default Destination Control entry:
along with the default Destination Control entry:
bounce_validation
Specifies whether to turn on bounce validation address
tagging.
tagging.
Enter one of the following values:
•
0
(or
off
)
•
1
(or
on
)
table_tls
for more information.
Enter one of the following values:
•
0
(or
off
)
•
1
(or
on
) for “Preferred”
•
2 (or
required
) for “Required”
•
3 (or
on_verify
) for “Preferred (Verify)”
•
4 (or
require_verify
) for “Required (Verify)”
Strings are not case sensitive.
bounce_profile
Name of the bounce profile to use. This cannot be used in
the
the
[DEFAULT]
destination control entry.
send_tls_req_alert
Whether to send an alert if the required TLS connection
fails.
fails.
Enter one of the following values:
•
0
(or
off
)
•
1
(or
on
)
This is a global setting and can only be used in the
[DEFAULT]
destination control entry.
certificate
Certificate used for outgoing TLS connections. This is a
global setting and can only be used in the
global setting and can only be used in the
[DEFAULT]
destination control entry.
Note
If you do not specify a certificate, AsyncOS
assigns the demonstration certificate, but using the
demonstration certificate is not secure and not
recommended for general use.
assigns the demonstration certificate, but using the
demonstration certificate is not secure and not
recommended for general use.
Table 21-9
Destination Control Configuration File Parameters
Parameter Name
Description
[DEFAULT]
ip_sort_pref = PREFER_V6
max_host_concurrency = 500