Is there a more "classical" at(@)-symbol that matches the cmbright-font as the symbol that's already included in the font? I already had a look at the The Comprehensive LATEX Symbol List but it seems that there isn't any at-symbol that matches the cmbright-font.
\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[hidelinks]{hyperref}
\usepackage{marvosym}
\usepackage{cmbright}
\renewcommand{\familydefault}{\sfdefault}
\newcommand{\emaila}{{\href{mailto:john.dole@abc.de}{john.dole@abc.de}}}
\newcommand{\emailb}{{\href{mailto:john.dole@abc.de}{john.dole\MVAt abc.de}}}
\begin{document}
\emaila
\emailb
\end{document}
Best Answer
You could just use the standard computer modern at sign:
The same idea will allow you to pick the at sign from many other fonts. Here is the result of
chosen by the poster: