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.
Atlassian Confluence is a knowledge management software with flexible customization, organization and a powerful search engine, empowering collaboration and innovation.
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.
Mailgun is an email automation service offering a complete cloud-based email service for sending, receiving & tracking email sent through user websites & apps.
Zoom is a scalable, cloud based video conferencing & web conferencing platform enabling online meetings, webinars, file sharing, group messaging and more.