Exim4 configuration

The following variables are used in the description:

• eMail Domain: MYDOMAIN (e.g. dummy.de)
• Hostname of the server: HOSTNAME (e.g. myserver)
• smtp Hostname to deliver emails: SMTP_PROVIDER_HOST (e.g. mail.your-server.de)
• Userid to send emails: SMTP_INPUT_USERNAME
• Password to send emails: SMTP_INPUT_PASSWORD

Changes or additions:

• /etc/aliases: root: HOSTNAME@MYDOMAIN, then sudo newaliases

• /etc/mailname: MYDOMAIN

• /etc/hostname: HOSTNAME.MYDOMAIN

• /etc/email-addresses: root: HOSTNAME@MYDOMAIN

• /etc/hosts: hosts:127.0.1.1 HOSTNAME HOSTNAME.MYDOMAIN

• /etc/exim4/update-exim4.conf.conf

  dc_eximconfig_configtype='internet'
  dc_other_hostnames='localhost'
  dc_local_interfaces='127.0.0.1 ; ::1'
  dc_readhost='HOSTNAME.MYDOMAIN'
  dc_relay_domains=''
  dc_minimaldns='false'
  dc_relay_nets=''
  dc_smarthost='SMTP_PROVIDER_HOST'
  CFILEMODE='644'
  dc_use_split_config='false'
  dc_hide_mailname='true'
  dc_mailname_in_oh='true'
  dc_localdelivery='mail_spool'
  keep_environment=
  

• /etc/exim4/passwd.client

  SMTP_PROVIDER_HOST:SMTP_INPUT_USERNAME:SMTP_INPUT_PASSWORD
  

To send e.g. status mails from raspiBackup as root, nullmailer can be used.