The SMTP Virtual Server Message Count Limit is not 20.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-18669	EMG2-149 Exch2K3	SV-20282r1_rule	ECSC-1	Low

Description
E-Mail system availability depends in part on best practices strategies for setting tuning configurations. This setting controls the maximum number of messages allowed in a single SMTP session by breaking large numbers of messages into multiple sessions. This configuration is the preferred place to control session size.

STIG	Date
Microsoft Exchange Server 2003	2014-08-19

Details

Check Text ( C-22388r1_chk )
Perform for each SMTP virtual server. Procedure: Exchange System Manager >> Administrative Groups >> [administrator group] >> Servers >> [server] >> Protocols >> SMTP >> [specific SMTP server] >> Properties >>Messages tab The “Limit number of messages per connection” should be set to 20. Criteria: If “Limit number of messages per connection” is set to 20 (or other value with justifying documentation), this is not a finding.

Check Text ( C-22388r1_chk )

Perform for each SMTP virtual server.

Procedure: Exchange System Manager >> Administrative Groups >> [administrator group] >> Servers >> [server] >> Protocols >> SMTP >> [specific SMTP server] >> Properties >>Messages tab

The “Limit number of messages per connection” should be set to 20.

Criteria: If “Limit number of messages per connection” is set to 20 (or other value with justifying documentation), this is not a finding.

Fix Text (F-19316r1_fix)
Configure the SMTP Session messages count limit. Procedure: Exchange System Manager >> Administrative Groups >> [administrator group] >> Servers >> [server] >> Protocols >> SMTP >> [specific SMTP server] >> Properties >>Messages tab Set “Limit number of messages per connection” at 20 or the value determined necessary for the site.