To whom are Azure DevOps access request e-mails sent? And can that be controlled?

Is there a way to control the recipients of the e-mail that's sent when a user requests access to a project in my organization in Azure DevOps? To what recipients/group is it sent by default?

1.When requesting access to organization level, the email will be sent to Project Collection Administrators Group in Organization Settings.

2.When requesting access to one project with project level, the email will be sent to Project Collection Administrators Group in Organization Settings and Project Admins of that specific project.

Since you're requesting access to one project, admins of Organization(Project Collection Administrators) and that project(Project Administrators) will all receive the emails.

Apart from Project Collection Administrators group in Org settings, you also need to configure the Project Administrators group in Project Settings=>Permissions.

Thanks for reaching out.

Project Collections Administrators group receives the email by default if a user requests access to a project.

So that means whoever is in the Project Administrators Group will receive the Email Notification and if you are the Owner of the Project/Organization, you can control the group by Adding/Removing the users.

Please look at below screenshot :

I hope this information helps.