MFA - Guidance needed based on specific requirements (Question 1)

Hi All, I am designing a product configuration app that would recommend services based on their responses to a questionnaire. Early on in the questionnaire, we want to identify if the person using the service is an existing customer. If so we require 2 pieces of information from them Customer contract number Work email address   If contract number is valid and the email belongs to the company domain then send an email with a code for validation. There are a few things I need to solve. I will be breaking this question up into smaller posts to avoid this becoming too long and not helpful for others.    Question 1: What module can I install and steps I need to take to be able to send an email code to an anonymous user based on their entered email address?     Thanks, Byron
1 answers

You need the email module: icw the model reflection module 

To implement use the documentation