SpamAssassin daemon image.

*

!entrypoint

!spamd-ping

!spamd-learn

FROM debian:stretch-slim

RUN apt-get update && \

    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \

        gnupg \

        libmail-spf-perl \

        spamassassin \

        spamc \

    && \

    sa-update && \

    rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/* /var/cache/apt/archives/*

COPY --chown=root:root spamd-ping spamd-learn /usr/local/bin/

COPY --chown=root:root entrypoint /entrypoint

EXPOSE 783

VOLUME /run/spamd

VOLUME /var/backups/sa-learn

ENTRYPOINT [ "/entrypoint" ]

CMD [ "spamd", "--create-prefs", "--max-children=5", "--helper-home-dir", "--listen=0.0.0.0:783", "--socketpath=/var/run/spamd/spamd.sock", "--syslog=stderr" ]

HEALTHCHECK CMD spamd-ping

# spamd

> SpamAssassin container image.

## Exposed interfaces

The daemon is accessible over TCP at port 783 and over the `spamd.sock` Unix

socket in the `/run/spamd` volume.

## Training the Bayesian classifier

The image comes with the script `spamd-learn` which goes over the mobx files in

`/var/mail`, uses them for training the classifier and them saves the database

in the `/var/backups/sa-learn` volume. On statup, the container restores the

database from that volume. To update the database run `spamd-learn` from inside

the container with `docker exec` (there's no need to restart the container

afterwards). For an example see the [Cron image](../crond) inside this project.

## License

This software is licensed under the MIT license (see `LICENSE.txt`).

## Author Information

Nimrod Adar, [contact me](mailto:nimrod@shore.co.il) or visit my [website](

https://www.shore.co.il/). Patches are welcome via [`git send-email`](

http://git-scm.com/book/en/v2/Git-Commands-Email). The repository is located

at: <https://www.shore.co.il/git/>.

#!/bin/sh

set -eux

install -d -m 750 -o debian-spamd -g debian-spamd /run/spamd

install -d -m 750 -o debian-spamd -g debian-spamd /var/backups/sa-learn

sh -c 'sleep 60; sa-learn --restore /var/backups/sa-learn/backup.txt' &

eval exec "$@"

Subject: Test spam mail (GTUBE)

Message-ID: <GTUBE1.1010101@example.net>

Date: Wed, 23 Jul 2003 23:30:00 +0200

From: Sender <sender@example.net>

To: Recipient <recipient@example.net>

Precedence: junk

MIME-Version: 1.0

Content-Type: text/plain; charset=us-ascii

Content-Transfer-Encoding: 7bit

This is the GTUBE, the

	Generic

	Test for

	Unsolicited

	Bulk

	Email

If your spam filter supports it, the GTUBE provides a test by which you

can verify that the filter is installed correctly and is detecting incoming

spam. You can send yourself a test mail containing the following string of

characters (in upper case and with no white spaces and line breaks):

XJS*C4JDBQADN1.NSBN3*2IDNEN*GTUBE-STANDARD-ANTI-UBE-TEST-EMAIL*C.34X

You should send this test mail from an account outside of your network.