I downloaded:
https://www.springernature.com/gp/authors/campaigns/latex-author-support
And this is how I changed part with authors and emails:
\author{\fnm{Myname} \sur{Mysurname}}
\email{myemail@gmail.com}
And what I get in PDF then is "contributing authors: myemail@gmail.com". I didn't put there any information that this email is owned by some contributing authors. This template looks like broken in that sense. It shouldn't print anything like that. But how to fix this?
\emailafter an\authorcommand, this e-mail is associated with the author that you defined before. If you omit the\emailcommand, the relevant author won't have an e-mail address associated with it. Also, if you use\author*, this will be a "corresponding author". If you use\author, this will be a "contributing author". – Jasper Habicht Aug 10 '23 at 15:44