The project is a simple mailbox for internal use.

User can:

• display global contact list,
• send emails to any user from the global contact list,
• attach many files in one email,
• display inbox containing mails that other users sent to him/her,
• sort and filter emails,
• open incoming emails,
• change email read status,
• download indicated attachment,
• manage his/her groups.

As a group owner user can:

• create and delete groups,
• add and remove users from group,
• change group name.

Admin (user with special permissions):

• approve new users,
• ban and unban user,
• change user role,
• delete user from database.

Used technologies:

• project management - Azure DevOps,
• web framework - ASP.NET Core 3.1.,
• authentication - Azure Active Directory B2C,
• UI - Bootstrap, CSS,
• dynamic user-server interaction - Razor, AJAX,
• validations - FluentValidation,
• unit tests - xUnit,
• storage files - Azure Blob Storage.

External API use: When an email is sent by one user to another, the relevant data are sent to API and saved. The user has a desktop application that runs in the background and periodically sends to API requests for notifications. In case of receiving non-empty data, the application saves them in its memory and sends command to the API to delete the received notifications. Then the user receives a notification via the desktop application that he/she has new emails in his/her Mailbox.

The project builds on ASP.NET Core 3.1. Can be opened in Visual Studio 2019.

The project is built and tested after committing. Can be opened and compiled in Visual Studio 2019.

All added functionalities have to be tested. Changes can't break already working functionalities. The Master branch can contain only fully tested and working code.