Руководство Пользователя для Cisco Cisco Email Security Appliance C170

HAT parameters are combined with an access rule to create a mail flow policy (see 

). When you group together different HAT parameters 

and assign a name to them, you are defining a mail flow policy that can be applied to groups of senders. 

A sender group is simply a list of senders gathered together for the purposes of handling email from 
those senders in the same way (that is, applying a mail flow policy to a group of senders). A sender group 
is a list of senders identified by:

IP address (IPv4 or IPv6)

IP range

Specific host or domain name

SenderBase Reputation Service “organization” classification

SenderBase Reputation Score (SBRS) range (or lack of score)

DNS List query response

 for the syntax of defining remote hosts (sender entries) that make up sender groups. These 

sender entries are separated by commas in a listener’s HAT. You assign a name for sender groups, as well 
as mail flow policies. 

Together, sender groups and mail flow policies are defined in a listener’s HAT. By default, your Cisco 
IronPort appliance ships with the predefined mail flow policies and sender groups described in 

. 

Maximum Sender Rate Limit Error Code

452

Sender Rate Limit Error Text

“

Too many recipients 

received from the 

sender

”

Exceptions

None

Group by Similarity of IP address:

OFF

Directory Harvest Attack Prevention

OFF

Use anti-spam scanning:

OFF (If anti-spam enabled)

Use anti-virus scanning:

ON (If anti-virus enabled)

Allow TLS Connections:

NO

Override Hostname

NO

SMTP Auth

OFF

Domainkeys/DKIM Signing

OFF

DKIM Verification

OFF

SPF/SIDF Verification

OFF

Accept Untagged Bounces

NO

Envelope Sender DNS Verification

OFF

Use Exception Table

OFF