A method of federating electronic mail (e-mail). A request can be received from a first user to view at least one e-mail of a second user, the request including at least one identifier corresponding to the second user and a criteria indicating a subject matter of the e-mail. The method further can include verifying whether the first user is authorized to access the e-mail of the second user that satisfies the criteria. Responsive to determining that the first user is authorized to view the e-mail of the second user that satisfies the criteria, the first user can be provided access to view the at least one e-mail that satisfies the criteria.