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.
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.
MailChimp list management features help users organize and target their list for sending. They automatically remove bounce backs and unsubscribes from their list.
Zoom is a scalable cloud based video conferencing & web conferencing platform enabling online meetings, webinars, file sharing, group messaging and more.