Technical data

Configuring and Managing SMTP
17.6 Configuring SMTP AntiSPAM
Table 17–4 (Cont.) AntiSPAM Configuration Options
Field Name Value Default
Reject-Unbacktranslatable-IP TRUE or FALSE.
If TRUE, the SMTP
server rejects any mail
from an SMTP client
whose IP address cannot
be backtranslated to a
hostname.
FALSE
Accept-Unqualified-Senders TRUE or FALSE.
If TRUE, the SMTP server
accepts mail for which the
sender address (the address
from the MAIL FROM
command) has no domain or
an unqualified domain.
FALSE
Accept-Unresolvable-Domains TRUE or FALSE.
If TRUE, the SMTP server
accepts mail for which the
sender address (the address
from the MAIL FROM
command) has a domain
that cannot be resolved
using MX lookup.
FALSE
Reject-Mail-From A list of wildcarded
patterns that are matched
against the sender address.
If a match occurs, the
MAIL FROM command
is rejected and the link is
disconnected.
If not defined, SMTP
will not check the sender
address of the mail
against the list.
Accept-Mail-From A list of wildcarded
patterns that are matched
against the sender address
if the sender address has
matched one of the entries
in the Reject-Mail-From
list. If the sender address
matches the Accept-Mail-
From list, the message is
sent on.
If not defined, SMTP
will not check the sender
address of the mail
against the list.
SPAM-Action Allows you to configure the
way SMTP reports a SPAM
event. Specify a comma-
separated list including one
or more of the following:
• NONE
• OPCOM
• ACCOUNTING
OPCOM
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Configuring and Managing SMTP 17–17