"Also, the author is listed as gbarr, even listing all modules by author still doesn’t show Net::SMTP in his list."
Graham Barr (gbarr) was the original author.
See "Net::SMTP - AUTHOR":
Graham Barr <gbarr@pobox.com>
Steve Hay <shay@cpan.org> is now maintaining libnet as of version 1.22_02
If you look at the top of the Net::SMTP page,
you'll see a link to the author (Steve Hay),
followed by a link to the distribution (libnet-3.10).
That's standard at the top of all such pages:
Author Name > distibution-version > Module::Name
