dockerfile.run – spf

spf_example

query SPF (Sender Policy Framework) to validate mail senders

Debian

RUN apt-get update && \
    apt-get install -y spfquery

Ubuntu

RUN apt-get update && \
    apt-get install -y spfquery

Kali Linux

RUN apt-get update && \
    apt-get install -y spfquery

Fedora

RUN dnf install -y libspf2-progs

Raspbian

RUN apt-get update && \
    apt-get install -y spfquery

click the source code to copy install spf_example on any operating system with command-not-found.com