letter-template.latex

\documentclass[
    fromalign=left,      % letter head on the right
    fromphone,           % show phone number
	fromaddress,
    fromemail,           % show email
    version=last,        % latest version of KOMA letter
	refline=dateleft,    % aligns both the city and the date to the left
	backaddress=off,	 % Sender address in this window
	foldmarks=on,		 % Print foldmarks	
	parskip=full,
	firstfoot=on		 % display footer on first page
]{scrlttr2}

% \usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}

\usepackage{parskip}

\usepackage{graphics}

\usepackage{booktabs}
\usepackage{longtable}

% \usepackage[right]{eurosym}

\usepackage{setspace}

\providecommand{\tightlist}{%
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}

\makeatletter
     \setlength{\@tempskipa}{-1.2cm}%
     \@addtoplength{toaddrheight}{\@tempskipa}
	 \@setplength{sigbeforevskip}{2\baselineskip}
\makeatother

\setlength{\oddsidemargin}{\useplength{toaddrhpos}}
\addtolength{\oddsidemargin}{-1in}
\setlength{\textwidth}{\useplength{firstheadwidth}}

\begin{document}
    \setkomavar{fromname}{$author$}
    \renewcommand*{\raggedsignature}{\raggedright}
    \setkomavar{fromaddress}{
        $for(return-address)$
            $return-address$$sep$\\
        $endfor$
    }
    \setkomavar{fromphone}{$phone$}
    \setkomavar{fromemail}{$email$}
    \setkomavar{signature}{$author$}

    \setkomavar{date}{$date$}
    \setkomavar{place}{$place$}

    \setkomavar{subject}{$subject$}
	
	\setkomavar{firstfoot}{\centering \pagemark}

    \begin{letter}{%
        $for(address)$
            $address$$sep$\\
        $endfor$
    }

        \opening{$opening$}
            \begin{onehalfspacing}
                $body$
            \end{onehalfspacing}
        \closing{$closing$}

        \ps $postskriptum$

        $if(encludes)$
            \setkomavar*{enclseparator}{Anlage}
            \encl{$encludes$}
        $endif$
    \end{letter}
\end{document}