my @emails = (
  'To: <firstone@somewhere.com>',
  'To: You and I <secondone@somewhere.com>',
  'To: thirdone@somewhere.com'
);

for (@emails) {
  /^To:\s*[^<]*<([^>]+)>/ || /^To:\s*(.+)$/;
  print $1, $/;
}

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In reply to Re: Strip everything but an email address by Anonymous Monk
in thread Strip everything but an email address by powerhouse

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