sendmail, 4th Edition

The Queue

Several options combine to determine your site’s policy for managing the sendmail queue (see Chapter 11 on page 394). Among them is one that specifies the location of the queue directory and another that sets the permissions given to files in that directory. The list of many options that affect the queue is shown in Table 24-7.

Table 24-7. Options that affect the queue

Option name		§	Description
[a]
CheckpointInterval	(C)	CheckpointInterval on page 983	Checkpoint the queue.
DaemonPortOptions		DaemonPortOptions on page 993	Tune queuing under load per daemon (V8.14 and later).
DataFileBufferSize		DataFileBufferSize on page 998	Buffered I/O df limit.
HoldExpensive	(c)	HoldExpensive on page 1036	Queue for expensive mailers.
MaxQueueChildren		MaxQueueChildren on page 1049	Limit total concurrent queue processors.
MaxQueueRunSize		MaxQueueRunSize on page 1050	Maximum queue messages processed.
MaxRunnersPerQueue		MaxRunnersPerQueue on page 1051	Limit concurrent queue processors per queue group.
MinFreeBlocks	(b)	MinFreeBlocks on page 1057	Define minimum free disk blocks.
MinQueueAge		MinQueueAge on page 1057	Skip queue file if too young.
NiceQueueRun		NiceQueueRun on page 1059	Default nice(3) setting for queue processors.
PrivacyOptions	(p)	PrivacyOptions on page 1065	Increase privacy of the daemon.
QueueDirectory	(Q)	QueueDirectory on page 1070	Location of queue directory.
QueueFactor	(q)	QueueFactor on page 1071	Factor for high-load ...