Users see the email address of all users when composing the email

[Maximus]

Hi Marco,
Could you provide screenshots of your regular user role?

[albion]

Hello,
i need help.
I have configured espocrm so that each user (sales agent) cannot see the other users, but when they create a new email from their personal email account, they are able to see the email addresses of all the agents.
Is there a configuration I haven't seen?
Thank you,
Marco