postfix gmail relay
Jan 2 18:38:00 centos-vb3 postfix/smtp[31492]: warning: SASL authentication failure: No worthy mechs found
Jan 2 18:38:00 centos-vb3 postfix/smtp[31492]: F1CFA60BBD: SASL authentication failed; cannot authenticate to server smtp.gmail.com[74.125.129.109]: no mechanism available
yum install cyrus-sasl-plain
vim /etc/postfix/main.cf
#Set the relayhost to the Gmail SMTP server relayhost = smtp.gmail.com:587 smtp_use_tls = yes smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_tls_CAfile = /etc/pki/CA/cacert.pem smtp_sasl_security_options = smtp_tls_security_level = secure smtp_tls_mandatory_protocols = TLSv1 smtp_tls_mandatory_ciphers = high smtp_tls_secure_cert_match = nexthop
vim /etc/postfix/sasl_passwd
# cat sasl_passwd
smtp.gmail.com [email protected]:123456
postmap /etc/postfix/sasl_passwd
chmod 600 /etc/postfix/sasl_passwd*
chown postfix /etc/postfix/sasl_passwd*
/etc/init.d/postfix reload
tail -f /var/log/maillog