sendmail, 4th Edition

Controlling Machine Load

Several options control the sendmail program’s behavior under high-machine-load conditions. They are intended to reduce the impact of sendmail on machines that provide other services and to help protect sendmail from overburdening a machine. The list of options that determine and help to prevent high-load conditions is shown in Table 24-9.

Table 24-9. Options that determine load

Option name		§	Description
ClassFactor	(z)	ClassFactor on page 984	Multiplier for priority increments.
ConnectionRateThrottle		ConnectionRateThrottle on page 988	Incoming SMTP connection rate.
ConnectionRateWindowSize		ConnectionRateWindowSize on page 989	Window size for FEATURE(conncontrol) and FEATURE(ratecontrol) (V8.13 and later).
DaemonPortOptions		DaemonPortOptions=delayLA= (8.14 and later) on page 995	The DaemonPortOptions option’s keyword delayLA overrides the setting of the DelayLA option for this daemon (V8.14 and later).
DaemonPortOptions		DaemonPortOptions=children= (8.14 and later) on page 994	The DaemonPortOptions option’s keyword children overrides the setting of the MaxDaemonChildren option for this daemon (V8.14 and later).
DaemonPortOptions		DaemonPortOptions=queueLA= (8.14 and later) on page 997	The DaemonPortOptions option keyword queueLA overrides the setting of the QueueLA option for this daemon (V8.14 and later).
DaemonPortOptions		DaemonPortOptions=refuseLA= (8.14 and later) on page 997	The DaemonPortOptions option keyword refuseLA