Configure web form

I need this form: [login to view URL] to send emails to admin, with the "From Name" and "From Email" coming from the Name and Email fields within the form. I want the email sent to admin to appear as if the user directly emailed them. So admin could receive an email from the form and click on reply to send an email back to the user. Here is the problem, admin's email is with gmail and emails coming from my server are being blocked. I am currently using [login to view URL] to deliver emails to admin inbox, but I cannot make the from name/email be that from the user whom completed the form. We need to find a solution that will deliver the emails to the admin inbox, but using the Name and Email fields from the form as the "From Name" and "From Email" when the email is sent to admin. I need this done today! If you cannot work on this project today, please do not bid. I will be online to answer any questions and to help anyway I can.