Comment by kwhitefoot

$ spf spf: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by spf) spf: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.32' not found (required by spf)

I'm on Linux Mint 19