The Exchange ActiveSync: Command Reference Protocol enables a client, typically a mobile device, to synchronize and exchange objects with a server. These objects include email messages, Short Message Service (SMS) messages, attachments, folders, contact (3) information, meetings, calendar data, tasks, notes and documents.
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in [RFC2119]. Sections 1.5 and 1.9 are also normative but do not contain those terms. All other sections and examples in this specification are informative.