grepmail
search mailboxes for mail matching an expression
RUN apt-get update && \
apt-get install -y grepmail
RUN apt-get update && \
apt-get install -y grepmail
RUN apt-get update && \
apt-get install -y grepmail
RUN dnf install -y grepmail
RUN apt-get update && \
apt-get install -y grepmail