create-email-user.sh

#!/bin/sh
if [ ! $# = 1 ]
 then
  echo "Usage: $0 username@domain"
  exit 1
 else
  user=`echo "$1" | cut -f1 -d "@"`
  domain=`echo "$1" | cut -s -f2 -d "@"`
  if [ -x $domain ]
   then
    echo "No domain given\nUsage: $0 username@domain"
    exit 2
  fi
  echo "Adding user $user@$domain to /etc/dovecot/users"
  echo "$user@$domain::5000:5000::/home/vmail/$domain/$user/:/bin/false::" >> /etc/dovecot/users

  # Create the needed Maildir directories
  echo "Creating user directory /home/vmail/$domain/$user"
  # maildirmake.dovecot does only chown on user directory, we'll create domain directory instead
  if [ ! -x /home/vmail/$domain ]
   then
    mkdir /home/vmail/$domain
    chown 5000:5000 /home/vmail/$domain
    chmod 700 /home/vmail/$domain
  fi
  /usr/bin/maildirmake.dovecot /home/vmail/$domain/$user 5000:5000
  # Also make folders for Drafts, Sent, Junk and Trash
  /usr/bin/maildirmake.dovecot /home/vmail/$domain/$user/.Drafts 5000:5000
  /usr/bin/maildirmake.dovecot /home/vmail/$domain/$user/.Sent 5000:5000
  /usr/bin/maildirmake.dovecot /home/vmail/$domain/$user/.Junk 5000:5000
  /usr/bin/maildirmake.dovecot /home/vmail/$domain/$user/.Trash 5000:5000

  # To add user to Postfix virtual map file and relode Postfix
  echo "Adding user to /etc/postfix/vmaps"
  echo $1  $domain/$user/ >> /etc/postfix/vmaps
  postmap /etc/postfix/vmaps
  postfix reload
fi
echo "\nCreate a password for the new email user"
passwd=`doveadm pw`
echo "Adding password for $user@$domain to /etc/dovecot/passwd"
if [ ! -x /etc/dovecot/passwd ]
 then
  touch /etc/dovecot/passwd
  chmod 640 /etc/dovecot/passwd
fi
echo  "$user@$domain:$passwd" >> /etc/dovecot/passwd

exit 0