Mail Event Logging

See http://wiki.dovecot.org/Plugins/MailLog for more details.

mail_plugins = $mail_plugins notify mail_log

Enable the mail_log plugin.

plugin {
 mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
 mail_log_fields = uid box msgid size from
}

Log a line about events that may cause message to be deleted. This is commonly useful when debugging why users have lost messages.