This file is indexed.

postinst is in dovecot-lmtpd 1:2.2.22-1ubuntu2.

This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
#!/bin/sh

set -e

if [ "$1" = "configure" ]; then
  CONFFILES="conf.d/20-lmtp.conf"

  for conffile in $CONFFILES ; do
    # Tell ucf that the file in /usr/share/dovecot is the latest
    # maintainer version, and let it handle how to manage the real
    # configuration file in /etc/dovecot.
    ucf --three-way /usr/share/dovecot/$conffile /etc/dovecot/$conffile
    ucfr dovecot-lmtpd /etc/dovecot/$conffile
  done

  echo 'protocols = $protocols lmtp' > /usr/share/dovecot/protocols.d/lmtpd.protocol
fi