DNSEVAL - look up URLs against DNS blocklists
This checks all the from addrs domain names as an alternate to check_rbl_from_host. As of v3.4.1, it has been improved to include a subtest for a specific octet.
To install Mail::SpamAssassin, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Mail::SpamAssassin
CPAN shell
perl -MCPAN -e shell install Mail::SpamAssassin
For more information on module installation, please visit the detailed CPAN module installation guide.