Gmail is a free, advertising-supported email service offered as part of Google's G Suite, with 15GB of storage, color-coded inbox filters and unsend button.
PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.
ReQtest is a cloud-based test management tool for testing teams which supports advanced bug tracking, test management and requirement management technology, and provides end-to-end project management, visual bug reporting, plus JIRA integration.