Gantter is a cloud-based, multi-lingual project management tool with Google Drive and G-Suite integration, and the ability to open and edit MS Project MPP files.
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.