A method, system and computer-usable medium for providing a subscription to an e-mail message thread via a mobile device. A user may subscribe to an e-mail message thread utilizing a mobile device, based on a unique e-mail thread ID associated with the e-mail thread within the e-mail message itself. Updated data regarding the e-mail message thread can then be provided in response to activity associated with the e-mail message thread. The updated data can be provided in the form of, for example, a text message, a text-to-speech voicemail message, and so forth. Additionally, a telephone number associated with the mobile device can be added to a database stored in an e-mail server that manages the e-mail message and the e-mail message thread in order to subscribe to the e-mail message via a mobile device. SMS data associated with the user can also be added to the database. A user is permitted to subscribe or unsubscribe to the e-mail message/thread, in response to a selection of a particular option in the e-mail message itself.