Mails mit virtuellen Domains auf Debian Squeeze

• /etc/postfix/main.cf:

  myhostname = localhost 
  alias_maps = hash:/etc/aliases
  alias_database = hash:/etc/aliases
  myorigin = $myhostname
  mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
  mailbox_size_limit = 0
  recipient_delimiter = +
  inet_interfaces = all
  home_mailbox = Maildir/
  
  virtual_mailbox_domains = /etc/postfix/vhosts
  virtual_mailbox_base = /var/mail/vhosts
  virtual_mailbox_maps = hash:/etc/postfix/vmaps
  virtual_minium_uid = 1000
  virtual_uid_maps = static:5000
  virtual_gid_maps = static:5000

• ACHTUNG: /var/mail/vhosts muss dem Benutzer vmail (5000:5000) gehören:

  groupadd -g 5000 vmail
  useradd -u 5000 -g 5000 -s /bin/false vmail
  chown vmail:vmail /var/mail/

• /etc/postfix/vhosts:

  example.com

• /etc/postfix/vmaps:

  info@example.com example.com/info/

• postmap /etc/postfix/vmaps
  /etc/init.d/postfix restart

• ACHTUNG: Domainverzeichnisse (/var/mail/vhosts/example.com) müssen selbst angelegt werden

• aptitude install dovecot-common dovecot-imapd dovecot-pop3d

• /etc/dovecot/dovecot.conf:

  base_dir = /var/run/dovecot/
  protocols = imap
  disable_plaintext_auth = yes
  shutdown_clients = yes
  log_path = /var/log/dovecot
  info_log_path = /var/log/dovecot.info
  log_timestamp = "%Y-%m-%d %H:%M:%S "
  
  login_dir = /var/run/dovecot/login
  login_chroot = yes
  login_user = dovecot
  login_greeting = Dovecot ready.
  mail_location = maildir:/var/mail/vhosts/%d/%n
  mmap_disable = no
  valid_chroot_dirs = /var/spool/vmail
  protocol imap {
    login_executable = /usr/lib/dovecot/imap-login
    mail_executable = /usr/lib/dovecot/imap
  }
  auth_executable = /usr/lib/dovecot/dovecot-auth
  auth_verbose = yes
  auth default {
    mechanisms = plain cram-md5
    passdb passwd-file {
      args = /etc/dovecot/passwd
    }
    userdb passwd-file {
      args = /etc/dovecot/users
    }
    user = root
    socket listen {
        client {
          # The client socket is generally safe to export to everyone. Typical use
          # is to export it to your SMTP server so it can do SMTP AUTH lookups
          # using it.
          path = /var/spool/postfix/private/auth-client
          mode = 0660
          user = postfix
          group = postfix
        }
      }
  }

sudo postconf -e 'smtpd_sasl_auth_enable = yes'
sudo postconf -e 'smtpd_sasl_security_options = noplaintext,noanonymous'
sudo postconf -e 'smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination'
sudo postconf -e 'smtpd_sasl_type = dovecot'
sudo postconf -e 'smtpd_sasl_path = private/auth-client'
sudo echo "mech_list: cram-md5" > /etc/postfix/sasl/smtpd.conf

• 143: IMAP
• 993: IMAP SSL/TLS
• 25: SMTP

• https://help.ubuntu.com/community/PostfixVirtualMailBoxClamSmtpHowto