documentclass{article}
usepackage[utf8]{inputenc}

title{TestLaTeXProject}
author{
NameA NameAA \
texttt{user.a@mail.com}
and
NameB NameBB \
texttt{user.b@mail.com}
and
NameC NameCC \
texttt{user.@mail.com}
and
NameD NameDD \
texttt{user.d@mail.com}
and
NameE NameEE \
texttt{user.e@mail.com}
and
NameF NameFF \
texttt{user.f@mail.com}
}
date{October 2018}

begin{document}
maketitle
end{document}