Email::Find is a module for finding a subset of RFC 822 email addresses in arbitrary text (see "CAVEATS"). The addresses it finds are not guaranteed to exist or even actually be email addresses at all (see "CAVEATS"), but they will be valid RFC 822 syntax. Email::Find will perform some heuristics to avoid some of the more obvious red herrings and false addresses, but there's only so much which can be done without a human.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.