This file is indexed.

/etc/apparmor.d/abstractions/dovecot-common is in apparmor 2.12-4ubuntu5.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# ------------------------------------------------------------------
#
#    Copyright (C) 2014 Canonical, Ltd.
#
#    This program is free software; you can redistribute it and/or
#    modify it under the terms of version 2 of the GNU General Public
#    License published by the Free Software Foundation.
#
# ------------------------------------------------------------------
# used with dovecot/*

  capability setgid,

  deny capability block_suspend,

  # dovecot's master can send us signals
  signal receive peer=/usr/sbin/dovecot,

  /{var/,}run/dovecot/config rw,