Ahoy Nathalia,
I'm sorry to say but I'm a bit at a loss as to what you are asking.
- Are you talking about RStudio.cloud (in alpha at the moment, focused on serving educators) or since you mention your company's email; perhaps RStudio Server Pro?
- If you're curious how to share a project with others, currently: Sharing RStudio Cloud project
- When you tried to share, in what way did it not work: did it fail on rstudio.cloud or the intended recipient simply not receive the e-mail?
If we are talking about rstudio.cloud, send me in private message the email you're working with.