libmailtools-perl 2.21-1 (amd64 binary) in ubuntu hirsute

 MailTools is a set of perl modules which provide an easy interface to
 manipulating email in an object-oriented fashion.
 .
  Mail::Address - Parse mail addresses
  Mail::Cap - Parse mailcap files
  Mail::Field - Base class for manipulation of mail header fields
  Mail::Field::AddrList - object representation of e-mail address lists
  Mail::Field::Date - a date header field
  Mail::Field::Generic - implementation for inspecific fields
  Mail::Filter - Filter mail through multiple subroutines
  Mail::Header - manipulate MIME headers
  Mail::Internet - manipulate email messages
  Mail::Mailer - Simple interface to electronic mailing mechanisms
  Mail::Send - Simple electronic mail interface
  Mail::Util - mail utility functions