FROM friendica/server:fpm-alpine # at least you HAVE to set one SMTP_HOST (normally something like mail.example.org) ENV SMTP_HOST mail RUN set -ex; \ \ apk add --no-cache \ ssmtp \ ; \ # disable the current mailhub sed -i "s|mailhub=|#mailhub= |g" /etc/ssmtp/ssmtp.conf; \ # enable the new mailhub echo "mailhub=${SMTP_HOST:-localhost}" >> /etc/ssmtp/ssmtp.conf; # simple = using an smtp without any credentials (mostly in local networks) # custom = you need to set host, port, auth_options, authinfo (e.g. for GMX support) ENV SMTP_TYPE simple