Optional SMTP relay

entrypoint.mailrelay.sh.tmpl

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y msmtp && rm -rf /var/lib/apt/lists/*
+
+echo "sendmail_path = /usr/bin/msmtp -t -i" >> /usr/local/etc/php/conf.d/sendmail.ini
+
+# Upstream ENTRYPOINT
+# https://github.com/docker-library/wordpress/blob/master/php7.4/apache/Dockerfile#L120
+/usr/local/bin/docker-entrypoint.sh apache2-foreground "$@"