I want to send CSV file through Email which I have done through Email Composer. Is there any other alternative by which I can accomplish task like I click on Button and Mail automatically send to respected email address?
The easiest way to achieve this is creating a backend.
Hit the correct REST endpoint with the required parameters and let your backend send the email with attachment.
Or more conplicated: build your own smtp relaying daemon in the app or make your own plugin for this
In case u have some time to spare