I'm working in a feature in which users can request a quote for some products they've selected. On clicking a button (Get quote), an email should be sent to the admin of the site with some details. I looked for triggers, but nothing fits for this requirement. Tried Sendgrid, but I can't use my API key, since the site will expose it. Is there any solution to send email for this action? Any Free or Paid plugins? Thanks in advance.