If your email address does not match your company domain, your account can still be connected to your company.
Once you have created your account and requested to join your existing company profile, your request will be automatically sent to the Owner or Admin of the profile. They will then manually review and approve your request.
Your account status will be "pending" until it is approved. As soon as you are approved, you will be notified via email. For additional details, refer to Pending Approval to Join Company.