25.3 Email Smarthost Using Postfix SMTP

20201109 Postfix is a standard SMTP server that is easy to setup for sending email via a smarthost SMTP server. It can also be set up to send email directly from the server as covered in Section @ref(email:smtp_postfix_server).

$ wajig install postfix
  Internet with smarthost
  System mail name: crisp.net.au
  SMTP relay host: smtp.outlook.com
  Root and postmaster mail recipient: support@crisp.net.au
  Accept mail: .... crisp.net.au
  Synchronous updates: No
  Local networks: [::ffff:]/104 [::1]/128
  Mailbox size limit: 0
  Local address extension character: +
  Internet protocols to use: all

Typical settings for a local host to send email using SMTP, as stored in /etc/postfix/main.cf is created using the reconfigure command:

$ wajig reconfigure postfix


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