######

    virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
    virtual_uid_maps = static:5000
    virtual_gid_maps = static:5000
    virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
    virtual_mailbox_base = /home/vmail
    virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf,mysql:/etc/postfix/mysql-email2email.cf
    virtual_transport = dovecot
    dovecot_destination_recipient_limit = 1

    ####smtp

    smtpd_sasl_type=dovecot
    smtpd_sasl_path=private/auth
    smtpd_sasl_auth_enable=yes
    smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination

    # Additional for quota support

    virtual_mailbox_limit_maps = mysql:/etc/postfix/mysql_virtual_mailbox_limit_maps.cf
    virtual_quota_user_bounce = yes
    virtual_quota_user_message_limit = 2048

    virtual_quota_user_message = Sorry, the user's maildir has overdrawn his diskspace quota, please try again later.

   # Additional for quota
    hosts = localhost
    user = mailuser
    password = mailuser
    dbname = mailserver
    query = SELECT quota FROM virtual_users WHERE user='%s'