displaying, in an email editing interface, hyperlink information of a sharable document and an authority control entry of the sharable document, wherein the hyperlink information of the sharable document is an anchor text link, text in the anchor text link represents a title of the sharable document, the authority control entry comprises an operation authority type entry and an operation authority object entry, the operation authority type is acquired through the operation authority type entry, and the operation authority object is acquired through the operation authority object entry;

acquiring authority data for the sharable document determined by a first user based on the authority control entry; wherein the authority data is used to determine a second user's operation authority data for the sharable document, the operation authority data comprises an operation authority type for the sharable document, and the operation authority type comprises a reading authority, a sharing authority, and an editing authority for the sharable document; and

sending an email edited through the email editing interface to the second user.