container-images/postfix
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Allow to use a SMTP server without authentication

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Ernesto Baschny 2021-03-23 22:41:01 +01:00 committed by Juan Luis Baptiste
parent 2264af0bca
commit b1ef5ea1d0
3 changed files with 11 additions and 10 deletions
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4
.env.example
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@ -5,10 +5,10 @@
# Optional: (Default value: 587) Port address of the SMTP server to use.
#SMTP_PORT=
# Mandatory: Username to authenticate with.
# Optional: Username to authenticate with.
#SMTP_USERNAME=
# Mandatory: Password of the SMTP user. (Not needed if SMTP_PASSWORD_FILE is used)
# Optional (Mandatory if SMTP_USERNAME is set): Password of the SMTP user. (Not needed if SMTP_PASSWORD_FILE is used)
#SMTP_PASSWORD=
# Mandatory: Server hostname for the Postfix container. Emails will appear to come from the hostname's domain.

4
README.md
View file

@ -39,8 +39,8 @@ The following env variables need to be passed to the container:
* `SMTP_SERVER` Server address of the SMTP server to use.
* `SMTP_PORT` (Optional, Default value: 587) Port address of the SMTP server to use.
* `SMTP_USERNAME` Username to authenticate with.
* `SMTP_PASSWORD` Password of the SMTP user. If `SMTP_PASSWORD_FILE` is set, not needed.
* `SMTP_USERNAME` (Optional) Username to authenticate with.
* `SMTP_PASSWORD` (Mandatory if `SMTP_USERNAME` is set) Password of the SMTP user. If `SMTP_PASSWORD_FILE` is set, not needed.
* `SERVER_HOSTNAME` Server hostname for the Postfix container. Emails will appear to come from the hostname's domain.
The following env variable(s) are optional.

13
run.sh
View file

@ -17,9 +17,8 @@ function add_config_value() {
if [ -n "${SMTP_PASSWORD_FILE}" ]; then [ -f "${SMTP_PASSWORD_FILE}" ] && read SMTP_PASSWORD < ${SMTP_PASSWORD_FILE} || echo "SMTP_PASSWORD_FILE defined, but file not existing, skipping."; fi
[ -z "${SMTP_SERVER}" ] && echo "SMTP_SERVER is not set" && exit 1
[ -z "${SMTP_USERNAME}" ] && echo "SMTP_USERNAME is not set" && exit 1
[ -z "${SMTP_PASSWORD}" ] && echo "SMTP_PASSWORD is not set" && exit 1
[ -z "${SERVER_HOSTNAME}" ] && echo "SERVER_HOSTNAME is not set" && exit 1
[ ! -z "${SMTP_USERNAME}" -a -z "${SMTP_PASSWORD}" ] && echo "SMTP_USERNAME is set but SMTP_PASSWORD is not set" && exit 1
SMTP_PORT="${SMTP_PORT:-587}"
@ -33,9 +32,11 @@ add_config_value "mydestination" 'localhost'
add_config_value "myorigin" '$mydomain'
add_config_value "relayhost" "[${SMTP_SERVER}]:${SMTP_PORT}"
add_config_value "smtp_use_tls" "yes"
add_config_value "smtp_sasl_auth_enable" "yes"
add_config_value "smtp_sasl_password_maps" "lmdb:/etc/postfix/sasl_passwd"
add_config_value "smtp_sasl_security_options" "noanonymous"
if [ ! -z "${SMTP_USERNAME}" ]; then
add_config_value "smtp_sasl_auth_enable" "yes"
add_config_value "smtp_sasl_password_maps" "lmdb:/etc/postfix/sasl_passwd"
add_config_value "smtp_sasl_security_options" "noanonymous"
fi
add_config_value "always_add_missing_headers" "${ALWAYS_ADD_MISSING_HEADERS:-no}"
#Also use "native" option to allow looking up hosts added to /etc/hosts via
# docker options (issue #51)
@ -47,7 +48,7 @@ if [ "${SMTP_PORT}" = "465" ]; then
fi
# Create sasl_passwd file with auth credentials
if [ ! -f /etc/postfix/sasl_passwd ]; then
if [ ! -f /etc/postfix/sasl_passwd -a ! -z "${SMTP_USERNAME}" ]; then
grep -q "${SMTP_SERVER}" /etc/postfix/sasl_passwd > /dev/null 2>&1
if [ $? -gt 0 ]; then
echo "Adding SASL authentication configuration"