service sendmail stop
chkconfig sendmail off
groupadd -g 1200 postdrop
groupadd -g 1000 postfix
useradd -M -u 1000 -g postfix -G postdrop -s /sbin/nologin postfix
usermod -g 51 -G 48 smmsp
yum install db4-devel cyrus-sasl-devel pam pam-devel mysql-devel dovecot cyrus-sasl cyrus-sasl-lib cyrus-sasl-plain
postfix配置文件main.cf修改樣例
mydomain = skymobi.com
myhostname = mail.skymobi.com
myorigin = $mydomain
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, mail.$mydomain
inet_interfaces = all
mynetworks = 0.0.0.0/0
文件末尾加上
setgid_group = postdrop
smtpd_banner = welcome to our $myhostname ESMTP,warning: version not available!
smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_invalid_hostname,reject_non_fqdn_hostname,reject_unknown_sender_domain,reject_non_fqdn_sender,reject_non_fqdn_recipient,reject_unknown_recipient_domain,reject_unauth_pipelining,reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_path = smtpd
smtpd_sasl_security_options = noanonymous
unknown_local_recipient_reject_code = 550
saslauthd配置文件修改
mkdir /usr/lib/sasl2/
vim /usr/lib/sasl2/smtpd.conf
level: 3
pwcheck_method: saslauthd
mech_list: LOGIN PLAIN
dovecot配置文件
vim /etc/dovecot/dovecot.conf
protocols = pop3 imap lmtp
dict {
#quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
#expire = sqlite:/etc/dovecot/dovecot-dict-sql.conf.ext
}
!include conf.d/*.conf
vim /etc/dovecot/conf.d/10-auth.conf
disable_plaintext_auth = no
auth_mechanisms = plain login
!include auth-system.conf.ext
vim /etc/dovecot/conf.d/10-master.conf 修改
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}