[root@server standard]# perl -MCPAN -e 'install Net::SMTP::SSL'
CPAN: Storable loaded ok (v2.18)
Going to read /root/.cpan/Metadata
  Database was generated on Wed, 27 Feb 2008 19:31:00 GMT
Running install for module 'Net::SMTP::SSL'
CPAN: Data::Dumper loaded ok (v2.121_14)
'YAML' not installed, falling back to Data::Dumper and Storable to read prefs '/root/.cpan/prefs'
Running make for C/CW/CWEST/Net-SMTP-SSL-1.01.tar.gz
CPAN: Digest::SHA loaded ok (v5.45)
CPAN: Compress::Zlib loaded ok (v2.008)
Checksum for /root/.cpan/sources/authors/id/C/CW/CWEST/Net-SMTP-SSL-1.01.tar.gz ok
Net-SMTP-SSL-1.01/
Net-SMTP-SSL-1.01/Changes
Net-SMTP-SSL-1.01/lib/
Net-SMTP-SSL-1.01/lib/Net/
Net-SMTP-SSL-1.01/lib/Net/SMTP/
Net-SMTP-SSL-1.01/lib/Net/SMTP/SSL.pm
Net-SMTP-SSL-1.01/Makefile.PL
Net-SMTP-SSL-1.01/MANIFEST
Net-SMTP-SSL-1.01/META.yml
Net-SMTP-SSL-1.01/README
Net-SMTP-SSL-1.01/t/
Net-SMTP-SSL-1.01/t/test.t
CPAN: File::Temp loaded ok (v0.18)
Warning (usually harmless): 'YAML' not installed, will not store persistent state

  CPAN.pm: Going to build C/CW/CWEST/Net-SMTP-SSL-1.01.tar.gz

Checking if your kit is complete...
Looks good
/usr/bin/perl: symbol lookup error: /usr/lib/perl5/site_perl/current/i686-linux-thread-multi/auto/Net/SSLeay/SSLeay.so: undefined symbol: Perl_Tstack_sp_ptr
Warning: No success on command[/usr/bin/perl Makefile.PL INSTALLDIRS=site]
Warning (usually harmless): 'YAML' not installed, will not store persistent state
  CWEST/Net-SMTP-SSL-1.01.tar.gz
  /usr/bin/perl Makefile.PL INSTALLDIRS=site -- NOT OK
Running make test
  Make had some problems, won't test
Running make install
  Make had some problems, won't install
Could not read '/root/.cpan/build/Net-SMTP-SSL-1.01-bjHOWj/META.yml'. Falling back to other methods to determine prerequisites