:: What’s Postfix
Postfix is free and open source mail transfer agent.
:: How to setup Postfix relay email to Google Apps / Gmail in CentOS 6.3
+ Setup main.cf to relay email
vi /etc/postfix/main.cf
add some configure like these:
relayhost = [smtp.gmail.com]:587 smtp_sasl_auth_enable=yes smtp_sasl_password_maps = hash:/etc/postfix/gmail smtp_sasl_security_options = smtp_sasl_tls_security_options = noanonymous smtp_sasl_mechanism_filter = login smtp_tls_eccert_file = smtp_tls_eckey_file = smtp_use_tls = yes smtp_enforce_tls = no smtp_tls_CAfile = /etc/postfix/cacert.pem smtpd_tls_received_header = yes tls_random_source = dev:/dev/urandom
+ Setup Google Apps / Gmail Login
vi /etc/postfix/gmail
add line like this:
smtp.gmail.com [email protected]:password
+ Create Postfix db file for gmail login
postmap /etc/postfix/gmail
+ set CAfile
cp /etc/pki/tls/certs/ca-bundle.crt /etc/postfix/cacert.pem
+ Restarting Postix
/etc/init.d/postfix restart
+ Testing send an email
echo 'hello' | mailx -s 'ignore me' [email protected]
:: Links
+ Google
+ Carlosgomez
