在FreeBSD上组建ISP级的邮件系统

　　virtual_mailbox_domains = mysql:/usr/local/etc/postfix/mysql_virtual_domains_maps.cf

　　#virtual_mailbox_limit = 512000000

　　virtual_mailbox_maps = mysql:/usr/local/etc/postfix/mysql_virtual_mailbox_maps.cf

　　#virtual_minimum_uid = 125

　　#virtual_minimum_uid = 1000

　　#virtual_transport = virtual

　　virtual_transport = maildrop:

　　maildrop_destination_recipient_limit = 1

　　#virtual_uid_maps = static:125

　　#virtual_uid_maps = static:1000

　　################Quota################

　　virtual_create_maildirsize = yes

　　virtual_mailbox_extended = yes

　　virtual_mailbox_limit_maps = mysql:/usr/local/etc/postfix/mysql_virtual_mailbox_limit_maps.cf

　　virtual_mailbox_limit_override = yes

　　virtual_maildir_limit_message = Sorry,the user's Maildir has overdrawn his diskspace quota ,please tray again later.

　　virtual_overquota_bounce = yes

　　##############SASL####################

　　smtpd_sasl_auth_enable = yes

　　smtpd_sasl2_auth_enable = yes

　　smtpd_sasl_security_options = noanonymous

　　broken_sasl_auth_clients = yes

　　smtpd_recipient_restrictions =

　　permit_mynetworks,

　　permit_sasl_authenticated,

　　reject_unauth_destination,

　　reject_unauth_pipelining,

　　reject_invalid_hostname,

　　reject_rbl_client cbl.anti-spam.org.cn #CBL 服务器 具体请看anti-spam.org.cn

　　#注意上面几行前面是有空格的。