We start from a working Postfix configuration. This article will simply show you what needs to be changed in order to use the Amazon SES email relay. In this example we’re using the “email-smtp.us-east-1.amazonaws.com” SMTP relay from Amazon. you should use the one allocated to you. See Amazon’s documentation here.
TIP: SES is in “sandbox” mode until you lodge a support request to have the limit increased. Do this before you start forwarding your email through SES.
yum install mailx cyrus-sasl cyrus-sasl-plain cyrus-sasl-md5
Added the following to “/etc/postfix/main.cf”:
# AGIX relayhost = email-smtp.us-east-1.amazonaws.com:587 smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl-passwords smtp_use_tls = yes smtp_tls_security_level = encrypt smtp_tls_note_starttls_offer = yes smtp_sasl_mechanism_filter = PLAIN LOGIN
Added the following to “/etc/postfix/sasl-passwords” on one line. Make sure to replace the [username] and [password] with yours. Remove the [ and ] characters from my example:
Then run the following:
Then restarted postfix:
service postfix restart