Symantec 10490452 Administration Guide - Page 25
Advanced SMTP settings, Table 2-1, Description
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Configuring system settings 25 Configuring host (Scanner) settings Advanced SMTP settings Use the MTA Configuration portion of the page to specify the MTA host name. The MTA Host Name gives you the ability to define the Hello banner during the initial portion of the SMTP conversation. Use the following advanced inbound SMTP settings to further define your SMTP configuration: Table 2-1 Inbound SMTP advanced setting descriptions Item Description Maximum number of connections Sets the maximum number of simultaneous inbound connections allowed. Additional attempted connections are rejected. The default is 2,000 connections. Maximum number of connections from a single IP address 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. You can also limit the number of connections from a single IP address per time period. Click Policies > Attacks in the Control Center. Maximum message size in Sets the maximum size of a message before it is rejected. The bytes default is 10,485,760 bytes. Maximum number of recipients per message Sets the maximum number of recipients for a message. The default is 1,024 recipients. Insert RECEIVED header Places a RECEIVED header in the message during inbound to inbound messages SMTP processing. Enable reverse DNS lookup 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. Use the following advanced outbound SMTP settings to define further your SMTP configuration: Table 2-2 Outbound SMTP advanced setting descriptions Item Description Maximum number of connections Sets the maximum number of permissible simultaneous outbound connections. Additional attempted connections are rejected. The default is 2,000 connections.