Cisco Cisco Email Security Appliance X1070 Guía Del Usuario

Max. Invalid 
Recipients Per Hour 
Text:

Specify the text to use for dropped connections. The 
default text is “Too many invalid recipients.”

Drop Connection if 
DHAP threshold is 
reached within an 
SMTP Conversation

Enable to drop connections if the DHAP threshold is 
reached within an SMTP conversation.

Max. Invalid 
Recipients Per Hour 
Code

Specify the code to use when dropping connections due 
to DHAP within an SMTP conversation. The default 
code is 550.

Max. Invalid 
Recipients Per Hour 
Text:

Specify the text to use when dropping connections due 
to DHAP within an SMTP conversation.

Anti-spam scanning

Enable anti-spam scanning on this listener.

Anti-virus scanning

Enable the anti-virus scanning on this listener.

Allow TLS 
Connections

Deny, Prefer, or Require Transport Layer Security 
(TLS) in SMTP conversations for this listener.

SMTP Authentication

Allows, disallow, or requires SMTP Authentication 
from remote hosts connecting to the listener. SMTP 
Authentication is described in detail in the “LDAP 
Queries” chapter of the Cisco IronPort AsyncOS for 
Email Advanced Configuration Guide.

If Both TLS and 
SMTP Authentication 
are enabled:

Require TLS to offer SMTP Authentication.

Domain Key/ DKIM 
Signing

Enable Domain Keys or DKIM signing on this listener 
(ACCEPT and RELAY only).