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Prints mail header lines from the current user's mailbox. More information: <https://mailutils.org/manual/html_chapter/Programs.html#frm-and-from>.

Debian Debian
RUN apt-get update && \ apt-get install -y mailutils
Ubuntu
RUN apt-get update && \ apt-get install -y mailutils
Arch Arch Linux
RUN pacman -S --noconfirm mailutils
image/svg+xml Kali Linux
RUN apt-get update && \ apt-get install -y mailutils
Raspbian
RUN apt-get update && \ apt-get install -y mailutils
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