Abstract: Methods and apparatus, including computer program products, for an application platform for electronic mail. A method includes, in a network of interconnected computers, receiving a request in an email server to start up an email client, initializing an app platform client residing in the email client, receiving a request in the email server to open an email message, determining if there is an app associated with the email message, and rendering the app within the email message.

Abstract: Methods and apparatus, including computer program products, for real time editing for electronic mail. A method includes, in a network, establishing a session between an email client and an email server, loading a legacy email message in the email client, receiving a live edit selection, converting contents of the legacy email message into a set of revisions, sending the set of revisions to the email server with an identifier created using a hashing algorithm on parts of the legacy email message header and body, comparing the identifier with current live emails to determine if the legacy email message has been edited previously, if the identifier is not found, generating a new live email with a master revision line containing the initial set of revisions, if the identifier is found, adding the revisions to a master revision line in the preexisting live email, and sending the live email content back to the email client where it replaces the legacy email.

Abstract: Methods and apparatus, including computer program products, for an application platform for electronic mail. A method includes, in a network of interconnected computers, receiving a request in an email server to start up an email client, initializing an app platform client residing in the email client, receiving a request in the email server to open an email message, determining if there is an app associated with the email message, and rendering the app within the email message.