This is a sequel to "Postfix: relay to authenticated SMTP".
I would like to send mail from two different Gmail accounts using Postfix. Here is the relevant section in the Postfix documentation: Configuring Sender-Dependent SASL authentication.
As a concrete example, here's how to set up two Gmail accounts (only relevant sections of the config files are listed below):
/etc/postfix/main.cf:
# sender-dependent sasl authentication
smtp_sender_dependent_authentication = yes
sender_dependent_relayhost_maps = hash:/etc/postfix/sender_relay
# default relayhost setting
relayhost = [smtp.gmail.com]:587
# smtp authentication settings
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_sasl_security_options = noanonymous
smtp_sasl_mechanism_filter = plain
smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt
smtp_use_tls = yes
smtp_tls_security_level = encrypt
/etc/postfix/sasl_passwd:
# per-sender authentication
account1@gmail.com account1@gmail.com:passwd1
account2@gmail.com account2@gmail.com:passwd2
# default relayhost
[smtp.gmail.com]:587 default_account@gmail.com:default_passwd
/etc/postfix/sender_relay:
account1@gmail.com [smtp.gmail.com]:587
account2@gmail.com [smtp.gmail.com]:587
After editing the config files (sudo su
), do
chmod 600 /etc/postfix/sasl_passwd
postmap sasl_passwd sender_relay
postfix reload
And you're all set.
To send an email from account1@gmail.com
, use sendmail
with the -f sender
option (set the envelope sender address):
sendmail -f account1@gmail.com -t <<EOF
To: webmaster@example.com
Subject: Hey, I successfully configured Postfix with sender-dependent SASL authentication!
Content-type: text/html
<b>Isn't this awesome?</b>
EOF
With your solution I can send mail with the "sendmail -t account1@gmail.com -f" and it is getting delivered, but if I am using mail command in CentOS 6.5 or any php mail script then the mails are not getting delivered inspite of mentioning "TO" address. Please suggest.