Binary package “libmail-spf-perl” in ubuntu bionic
Perl implementation of Sender Policy Framework and Sender ID
Mail::SPF is an object-oriented Perl implementation of the Sender Policy
Framework (SPF) e-mail sender authentication system <http://
.
It supports both the TXT and SPF RR types as well as both SPFv1 (v=spf1) and
Sender ID (spf2.0) records, and it is fully compliant to RFCs 4408 and 4406.
(It does not however implement the patented PRA address selection algorithm
described in RFC 4407.)