A method includes receiving e-mail input data from a client at a server that is configured to serve a hosted application that includes an e-mail user interface to the client. The e-mail input data is used to generate an e-mail message from a user of the client, where the client is associated with a first domain and the server is associated with a second domain. An e-mail object corresponding to the e-mail message from the user of the client is generated at the server, and the e-mail object is forwarded from the server to the client along with instructions to convert the e-mail object into the e-mail message and to send the e-mail message from the first domain.