anchor.diff:      };
     };
   
  +  TestRequiresInternet = buildPerlPackage rec {
  +     name = "Test-RequiresInternet-0.05";
  +     src = fetchurl {
  +       url = mirror://cpan/authors/id/M/MA/MALLEN/Test-RequiresInternet-0.05.tar.gz;
  +       sha256 = "0gl33vpj9bb78pzyijp884b66sbw6jkh1ci0xki8rmf03hmb79xv";
  +     };
  +     meta = {
  +       description = "Easily test network connectivity";
  +       license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
  +       homepage = "https://metacpan.org/dist/Test-RequiresInternet";
  +     };
  +  };
  +
     TestRoo = buildPerlPackage rec {
       name = "Test-Roo-1.004";
       src = fetchurl {
  
positive.code:       description = "Perl Interface to the Domain Name System";
        license = stdenv.lib.licenses.mit;
      };
    };
  
    NetDomainTLD = buildPerlPackage rec {
  
negative.code:   };
  
    MailDKIM = buildPerlPackage rec {
      name = "Mail-DKIM-0.52";
      src = fetchurl {
        url = mirror://cpan/authors/id/M/MB/MBRADSHAW/Mail-DKIM-0.52.tar.gz;
        sha256 = "1dbczg7vyvvm12d9gbiqd9a24qg4254cz7bh7yf3p27i58hhpbwy";
      };
      propagatedBuildInputs = [ CryptOpenSSLRSA MailTools NetDNSResolverMock YAMLLibYAML ];
      doCheck = false; # tries to access the domain name system
      buildInputs = [ TestRequiresInternet ];
    };
  
    MailIMAPClient = buildPerlPackage {
  