Mail app is missing on Redmi 5 phone

Almost every Android phone has stock email app preinstalled. Same is the case with Mi phones I had previously used- Redmi 2 Prime, Redmi Note 3 and Redmi Note 4. The default Mi Mail App is pretty decent and I had used it extensively both for work and personal emails. But in the recent Mi Redmi 5 phone purchase, I was surprised not to find the stock Mi Mail app preinstalled. As per Mi forums,