imapd - Internet Message Access Protocol (IMAP) server process
The IMAP4rev1 server, imapd, accepts commands on its standard input and
responds on its standard output. It is normally invoked by the inetd com-
mand and it reads its configuration options out of the imapd.conf file.
If you want to take the IMAP server off line for a period of time, you
should notify the client systems. To do this, create a msg/shutdown file,
edit it, and state the reason for the shut down. Set the owner of the msg
directory and the shutdown file to be the imap user. When a client system
tries to access the server, imapd sends the first line contained in the
shutdown file to the client and closes the connection.
If you want to send a message to the IMAP clients without disabling connec-
tions, create a msg/motd file, edit it, and add your message. Set the
owner of the msg directory and the motd file to be the imap user. The
server sends the first line contained in the file to the clients upon con-
nection as an ALERT message, which IMAP-compliant clients are required to
display. Access to mailboxes is unaffected.
For debugging purposes, create a log/user directory. When this directory
exists, the imapd daemon creates protocol telemetry logs for sessions
authenticating as user. The telemetry logs are stored in the log/user
directory with the file name of the imapd process id.
The msg/shutdown and msg/motd files and the log/user directory should be
created under the directory specified in the configdirectory configuration
option of the imapd.conf file. The default value is /var/imap, as in
Configuration file for the IMAP server
Commands: cyradm(1), deliver(8), imapd(8), imapquota(8), inetd(8), recon-
Network Administration: Services