I want to develop an Android application similar to Typeapp . I want to know the algorithm behind it. Basically it would be a customised inbox with all IMPS/POP3 emails in a one application. If we have to configure this in java/Android to connect with IMAP server how can I achieve this.
K-9 is an open-sourced email-client, if the license fits your project's requirements, then you can start from that code, and build on top of it: See: https://k9mail.github.io/