\documentclass[fromalign=right,fromphone,fromemail%:default:classopt:,%]{scrlttr2}

%:default:pkgs:%
\pagestyle{headings}

\begin{document}

% \setkomavar{backaddress}{}
% \setkomavar{fromaddress}{your street\\in your town}
% \setkomavar{fromemail}{mail@example.org}
\setkomavar{fromname}{Your Name}
% \setkomavar{fromphone}{}
% \setkomavar{place}{your town}

\renewcommand{\raggedsignature}{\raggedright}

\begin{letter}{%:start:%somebody\\
  somewhere}
  % \setkomavar{date}{}
  % \setkomavar{yourref}{}
  % \setkomavar{yourmail}{}
  % \setkomavar{customer}{}
  % \setkomavar{invoice}{}
  \setkomavar{subject}{}
  \opening{To Whom It May Concern,}

  \closing{With kind regards,}
  % \ps{}
  % \encl{}
  % \cc{}
\end{letter}

\end{document}