Symantec 10744983 - Mail Security 8320, Руководство администратора

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Configuring Default SMTP Settings
Additional SMTP settings are available from the SMTP Defaults page of the SMTP
tab when you click the Advanced Settings button at the bottom of the Edit Host
Configuration page. There are advanced SMTP settings for:
■
Inbound messages
■
Outbound messages
■
Delivering messages
Specify the MTA host name in the MTA Configuration portion of the SMTP Defaults
page. The MTA Host Name gives you the ability to define the HELO banner during
the initial portion of the SMTP conversation.
SMTP Defaults page–inbound settings describes inbound SMTP settings you can
use to further define your SMTP configuration.
Table 2-1
SMTP Defaults page—inbound settings
Description Item
Sets the maximum number of simultaneous inbound
connections allowed. Additional attempted connections
are rejected. The default is 2,000 connections.
Maximum number of
connections
(Not available on Windows systems.) Sets the maximum
number of simultaneous inbound connections allowed
from a single IP address. Additional connections for the
same IP address will be rejected. The default is 20.
Maximum number of
connections from a single IP
address
Sets the maximum size of a message before it is rejected.
The default is 10,485,760 bytes.
Maximum message size in
bytes
Sets the maximum number of recipients for a message.
The default is 1,024 recipients.
Maximum number of
recipients per message
Places a RECEIVED header in the message during inbound
SMTP processing.
Insert RECEIVED header to
inbound messages
Causes the system to perform reverse DNS lookup on the
SMTP client IP addresses to resolve the IP address to a
name when checked. This is the default condition. When
unchecked, reverse DNS lookup is not performed for
inbound messages.
Enable reverse DNS lookup
SMTP Defaults page–outbound settings describes the advanced outbound SMTP
settings that you can use to further define your SMTP configuration.
31 Configuring system settings
Configuring host (Scanner) settings