esmtp-wrapper
user configurable relay-only MTA
RUN apt-get update && \
apt-get install -y esmtp
RUN apt-get update && \
apt-get install -y esmtp
RUN pacman -S --noconfirm esmtp
RUN apt-get update && \
apt-get install -y esmtp
RUN dnf install -y esmtp
RUN apt-get update && \
apt-get install -y esmtp