ubuntu email using smarthost + auth exim/postfix

• sudo apt-get install exim4 mutt
• sudo dpkg-reconfigure exim4-config
  
  • smarthost - no local delivery
  • E-Mail-Name: name of the local machine e.g. 'myLaptop.example.com'
  • incoming connections: 127.0.0.1
  • local domains: empty
  • visible domain name:  'example.com'
  • smarthost: mySmarthost.example.com
  • limit dns: no
  • small config files: yes
• sudo vi /etc/exim4/passwd.client
  • mySmarthost.example:login:password
• sudo /etc/init.d/exim4 restart

test:

• mutt test@example.com

Alternative Postfix:

https://rtcamp.com/tutorials/linux/ubuntu-postfix-gmail-smtp/

• sudo apt-get install postfix mailutils libsasl2-2 ca-certificates libsasl2-modules
  
  • Satellite system
  • mypc
• sudo vi /etc/postfix/main.cf
  
  • relayhost =  [mymailserver.com]:587
    
    smtp_use_tls=yes
    smtp_sasl_auth_enable = yes
    smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
    smtp_sasl_security_options = noanonymous
    smtp_tls_CAfile = /etc/postfix/cacert.pem
• sudo vi /etc/postfix/sasl_passwd
  

  • mail.example.com me@example.com:mypassword

• sudo chmod 600 /etc/postfix/sasl_passwd
• sudo postmap /etc/postfix/sasl_passwd
• cat /etc/ssl/certs/Thawte_Premium_Server_CA.pem | sudo tee -a /etc/postfix/cacert.pem
• service postfix restart
• mutt me@example.com
• tail -f -n 50 /var/log/mail.log

 Rewrite sender address

• sudo vi /etc/postfix/main.cf
  
  • mydomain = desired-domain.com
    smtp_generic_maps = hash:/etc/postfix/generic
     
• vi /etc/postfix/generic
  
  • root@server.name   myServer@desired-domain.com
    @server.name       myServer@desired-domain.com
     
• postmap /etc/postfix/generic
• service postfix restart

 or with sender canonical

• vi /etc/postfix/sender_canonical
  • root@localhost me@example.com.com #emailadress at smarthost
• postmap /etc/postfix/sender_canonical
• service postfix restart