Using the acmart package, I have an author with an email address whose domain contains a hyphen. This gets broken into two lines by the default acmart styling, and since it's an email (and therefore interprets all commands literally), I'm not able to figure out a way to fix it without modifying acmart itself, which is forbidden in my conference proceedings.
This is similar to acmart: ugly email addresses -- how to avoid line breaking? except the domain contains a hyphen, and therefore the solution presented to that question does not work.
Reproducer:
\documentclass[sigconf]{acmart}
\begin{document}
\title{Paper Title}
\author{Author 1}
\email{email@domain.com}
\affiliation{Affiliation}
\author{Author 2}
\email{email@domain.com}
\affiliation{Affiliation}
\author{Author With Long Email 3}
\email{username@longlong.long-domain.ext}
\affiliation{Affiliation}
\maketitle
\end{document}
Looks like:
