Abstract: A first user device of a first user generates a collaboration object having at least a draft collaborator field for holding identifiers of collaborating users and a draft message field for holding email content. In response to input from the first user, at least the draft collaborator field is populated with an identifier of a second user. The collaboration object is provided to enable the second user to make modifications to one or more of the fields of the collaboration object to generate a modified version of the collaboration object. The modified version of the collaboration object is used to generate a final email. A collaborator field of the final email is populated with an identifier of the second user; and a message field of the final email is populated with email content as present in the draft message field of the modified version of the collaboration object.

Abstract: Techniques of peer-to-peer email synchronization are disclosed herein. In one embodiment, a technique includes transmitting, from a first client device to an email server, a synchronization request to synchronize an email between the email server and the first client device. In response, the first client device receives a reply containing data representing a replicate identification of email content of the email and identification of a second client device at which a copy of the email content is present. Upon receiving the reply, the first client device can establish a peer-to-peer communications channel with the second client device, download a copy of the email content of the email from the second client device instead of the email server, and surface the downloaded email content in an email client on the first client device to a user.