Hi,
I have read all the requirements carefully and I am the right person for the job. I have already done email validation with domain-specific keys for my current company. I can make one regex including some more validation to check email and domain before sending mail. I can do this with comparatively less time with better efficiency. I have 3+ years of experience in .NET Framework, C#, Web API, MVC framework, JWT Authentication, Azure Cloud Service, Mongo DB, SQL Server. Kindly send me all the details for more clarity and proper deadline of the task.