Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
7-9
User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
Chapter 7 Defining Which Hosts Are Allowed to Connect Using the Host Access Table (HAT)
Defining Access Rules for Email Senders Using Mail Flow Policies
Related Topics
•
HAT Variable Syntax
defines a set of variables that can also be used in conjunction with the custom SMTP and Rate
Limiting banners defined for a mail flow policy. Variable names are case-insensitive. (That is,
$group
is
equivalent to
$Group
.)
Related Topics
•
•
Using HAT Variables
Note
These variables can be used with the
smtp_banner_text
and
max_rcpts_per_hour_text
advanced HAT
parameters described in the “Configuring the Gateway to Receive Email” chapter.
Using these variables, you could edit the custom SMTP banner response text for accepted connections
in the $TRUSTED policy in the GUI:
in the $TRUSTED policy in the GUI:
Table 7-5
HAT Variable Syntax
Variable
Definition
$Group
Replaced by the name of the sender group that was matched in the HAT. If the sender
group has no name, “None” is displayed.
group has no name, “None” is displayed.
$Hostname
Replaced by the remote hostname if and only if is has been validated by the appliance.
If the reverse DNS lookup of the IP address is successful but returns no hostname, then
“None” is displayed. If the reverse DNS lookup fails (for example, if the DNS server
cannot be reached, or no DNS server has been configured) then “Unknown” is
displayed.
If the reverse DNS lookup of the IP address is successful but returns no hostname, then
“None” is displayed. If the reverse DNS lookup fails (for example, if the DNS server
cannot be reached, or no DNS server has been configured) then “Unknown” is
displayed.
$OrgID
Replaced by the SenderBase Organization ID (an integer value).
If the appliance cannot obtain a SenderBase Organization ID, or if the SenderBase
Reputation Service did not return a value, “None” is displayed.
Reputation Service did not return a value, “None” is displayed.
$RemoteIP
Replaced by the IP address of the remote client.
$HATEntry
Replaced by the entry in the HAT that the remote client matched.