Technical data

Configuring and Managing SMTP
17.6 Configuring SMTP AntiSPAM
The maximum number of characters in a value is 500 characters. Unless
otherwise noted, a field’s value is not case sensitive.
Fields described as Boolean have the following legal values:
To turn the feature
on: To turn the feature off:
ON OFF
TRUE FALSE
10
YES NO
To comment out a line, enter an exclamation point (!) in column 1.
The file SMTP_CONFIG.TEMPLATE is provided to help you create this file; it
contains guidelines on configuring antiSPAM.
17.6.1.1 SMTP AntiSPAM Field Names
Table 17–4 describes the field names and values for antiSPAM configuration. .
Table 17–4 AntiSPAM Configuration Options
Field Name Value Default
Good-Clients A list of the IP addresses,
IP nets, DNS hostnames,
and DNS MX domains of
known good SMTP clients.
If not defined, SMTP will
not check IP address of
SMTP client against this
list.
Bad-Clients A list of the IP addresses,
IP nets, DNS hostnames,
and DNS MX domains of
known bad SMTP clients.
If not defined, SMTP will
not check IP address of
SMTP client against this
list.
Relay-Zones A list of the SMTP domains
to which the system will
relay mail even if it is from
an unknown client.
If not defined, SMTP
will not check recipient
address of mail against
this list.
RBLs A list of domains that
maintain RBL lists.
If not defined, SMTP will
not check IP address of
SMTP client against any
RBL lists.
Relay-Based-On-Mx TRUE or FALSE.
If TRUE, the SMTP
server accepts relays
from unknown clients
to recipients where the
recipient’s domain has an
MX record naming the local
host as a gateway.
FALSE
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17–16 Configuring and Managing SMTP