Cisco Cisco Email Security Appliance C650 Guía Del Usuario
5-19
Cisco IronPort AsyncOS 7.6 for Email Configuration Guide
OL-25136-01
Chapter 5 Configuring the Gateway to Receive Email
Sender Groups
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:
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.
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
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
Table 5-6
HAT Default Policy Parameters for Private Listeners
Parameters
Default Value