Relay Mail with Exim4
=====================
Example: Google Mail SMTP. Local hostname is ``think``.

Assumes TLS.

https://wiki.debian.org/GmailAndExim4

.. highlight:: sh

::

    apt-get install exim4-daemon-light

    cat<<'EOF' > /etc/exim4/update-exim4.conf.conf
    dc_eximconfig_configtype='satellite'
    dc_other_hostnames='think'
    dc_local_interfaces='127.0.0.1 ; ::1'
    dc_readhost='think'
    dc_relay_domains=''
    dc_minimaldns='false'
    dc_relay_nets=''
    dc_smarthost='smtp.gmail.com::587'
    CFILEMODE='644'
    dc_use_split_config='false'
    dc_hide_mailname='true'
    dc_mailname_in_oh='true'
    dc_localdelivery='mail_spool'
    EOF

    cat<<'EOF' > /etc/exim4/passwd.client
    *.google.com:USERNAME@gmail.com:PASSWORD
    EOF

    chown root:Debian-exim /etc/exim4/passwd.client
    chmod 640 /etc/exim4/passwd.client

    update-exim4.conf
    service exim4 reload


Test (from bob@example.org)::

    echo 'Test body' | mail -r 'Bob <bob@example.org>' -s 'test subject' alice@example.org
    tail /var/log/exim4/mainlog

Flush queue::

    exim4 -qff  # flush all mails in queue

List and remove messages from queue::

    exim -bp
    exim -Mrm $message_id
    # e.g. exim -Mrm 1WGRuQ-0007ZD-5D