Hello there, my name is Ebrahim Mohammed, I have been a programmer and a web designer for over 5 years now with a lot of experience in HTML,PHP,ASP.NET,MVC,C#,C++,JS and many more programming and web designing languages , not to mention my experience in MySQL,SQL,JSON and File based databases, I have checked out your description and I understood that you want to create a new system in your admin dashboard which sents promotion email, I can create the system for you for 250$ in 2 days. you can check my portfolio and my reviews for proofs, you can also check this case study made about me https://www.freelancer.com/community/articles/ebrahim-hasan-freelancer-success-story