Use gmail as smtp server

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Revision as of 11:43, 24 March 2011 by Willem2 (talk | contribs)
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Contributed by Albert Pauw (Work in progress)

Just to be sure, we save a copy:

cd /etc/postfix cp main.cf main.cf.org

Now we edit the file main.cf:

The following lines need to be changed:

mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128

change to

mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.1.0/24

Obviously you add your internal network, 192.168.1.0 is a good guess (192.168.0.0 is another much used one).

If you don't do this, then your bubba won't accept mail for relaying.

relayhost =

change to

relayhost = [smtp.gmail.com]:587 

Add the following lines:

smtp_tls_CAfile=/etc/ssl/certs/ca-certificates.crt
smtp_use_tls=yes
smtpd_sasl_local_domain = $myhostname
smtp_sasl_tls_security_options = noanonymous
smtpd_sasl_application_name = smtpd

Now create or edit the file sasl_passwd and add the following line with your gmail account data:

[smtp.gmail.com]:587 Your_Gmail_ address:Your_Gmail_password 

save it and run

postmap sasl_passwd 

to (re)generate the sasl_passwd.db file.

Now restart postfix

/etc/init.d/postfix restart 

Look at /var/log/mail.log

tail -f /var/log/mail.log 

and send an email using your bubba (b3) as smtp server.