FROM wordpress:{{ wordpress.version }}-fpm RUN apt-get update; \ apt-get install -y --no-install-recommends msmtp; \ rm -rf /var/lib/apt/lists/* RUN echo "sendmail_path = /usr/bin/msmtp -t " > /usr/local/etc/php/conf.d/sendmail.ini # RUN "cat << EOF > /etc/msmtprc # account default # host {{ site.subnet_gateway_ip }} # port 25 # EOF" RUN echo "\ account default\n\ host {{ site.subnet_gateway_ip }}\n\ port 25\n\ from php@{{ site.url }}\n" > /etc/msmtprc # Should be UID & GID=33 # USER www-data:www-data