/var/spool/mqueue Directory for Mail

Purpose

Contains the log file and temporary files associated with the messages in the mail queue.

Description

The /var/spool/mqueue directory contains temporary files associated with the messages in the mail queue and may contain the log file. For further information, see the syslogd daemon.

Temporary files have names that include the mail queue ID (MQID) of the message for which the file was created:

Item Description
dfMQID Data file
lfMQID Lock file
nfMQID Backup file
qfMQID Queue control file
tfMQID Temporary control file
xfMQID Transcript file for session