A computer-implemented method can include initializing, at a computing device including one or more processors, an input method editor for composing an electronic message. The method can include receiving, at the computing device, an input from a user identifying a recipient for the electronic message. The method can include obtaining, at the computing device, language information corresponding to the recipient, the language information indicating one or more suggested natural languages for composing the electronic message. The method can include selecting, at the computing device, a natural language for composing the electronic message based on the language information to obtain a selected natural language. The method can also include configuring, at the computing device, the input method editor based on the selected natural language.