FROM alpine:3.21.3

LABEL Maintainer="Wolfgang Hottgenroth <woho@hottis.de>"
LABEL ImageName=""

# domain to be used in sender address of sent mails
ENV LOCALMAILNAME=""
# smarthost to send mail to
ENV SMARTHOST=""
# ip addresses or networks to allow for relaying, separate multiple ones by semicolon
ENV RELAYNETS=""

RUN apk add --no-cache exim bash

COPY exim.conf.tmpl /etc/exim
COPY start.sh /etc/exim

WORKDIR /etc/exim

EXPOSE 25

CMD [ "./start.sh" ]