I opened an issue at rt.cpan.org [0], containing a quick patch, fixing the issue for users of libmail-spf-perl, which directly use the 'default_authority_answer' (and thus log links to unreachable sites)
If it helps I can prepare a merge-request at salsa.d.o Best Regards, stoiko [0] https://rt.cpan.org/Public/Bug/Display.html?id=130413
