Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
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Cisco AsyncOS 9.0 for Email User Guide
Chapter 25 LDAP Queries
Configuring AsyncOS for SMTP Authentication
HAT Delayed Rejection
When HAT Delayed Rejection is configured, connections that would get dropped based on the HAT
Sender Group and Mail Flow Policy configuration can still authenticate successfully and get the RELAY
mail flow policy granted.
Sender Group and Mail Flow Policy configuration can still authenticate successfully and get the RELAY
mail flow policy granted.
You can configure delayed rejection using the
listenerconfig --> setup
CLI command. This behavior
is disabled by default.
The following table shows how to configure delayed rejection for HAT.
example.com> listenerconfig
Currently configured listeners:
1. listener1 (on main, 172.22.138.17) QMQP TCP Port 628 Private
2. listener2 (on main, 172.22.138.17) SMTP TCP Port 25 Private
Choose the operation you want to perform:
- NEW - Create a new listener.
- EDIT - Modify a listener.
- DELETE - Remove a listener.
- SETUP - Change global settings.
[]> setup
Enter the global limit for concurrent connections to be allowed across all listeners.
[300]>
[...]
By default HAT rejected connections will be closed with a banner
message at the start of the SMTP conversation. Would you like to do the rejection at the
message recipient level instead for more detailed logging of rejected mail?
[N]> y