HOWTO Send Mail to GMail by Postfix on Ubuntu Server 10 10

You cannot send any mail to GMail from you mail server, unless you set GMail server as your SMTP server.



Step 0 :



Install the Ubuntu Server 10.10 and select Mail Server when install.



Step 1 :



sudo nano /etc/postfix/transport



Append the following line.



*     smtp:[smtp.gmail.com]:587



Step 2 :



sudo nano /etc/postfix/sasl/sasl_passwd



Append the following line.



[smtp.gmail.com]:587     samiux@gmail.com:password



Step 3 :



sudo nano /etc/postfix/main.cf



Add or make the change of the following lines.



relayhost = [smtp.gmail.com]:587

smtp_sasl_auth_enable = yes

smtp_sasl_password_maps = hash:/etc/postfix/sasl/sasl_passwd

smtp_sasl_security_options = noanonymous

smtp_tls_CAfile = /etc/postfix/cacert.pem

smtp_use_tls = yes

mynetworks = 192.168.0.0/24 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128



Step 4 :



cat /etc/ssl/certs/Thawte_Premium_Server_CA.pem | sudo tee -a /etc/postfix/cacert.pem



Step 5 :



sudo postmap /etc/postfix/transport

sudo postmap /etc/postfix/sasl/sasl_passwd



Step 6 :



sudo /etc/init.d/postfix restart



Thats all! See you.

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