A method and system for processing a subscription to an e-mail message thread. Short Message Service (SMS) data is assigned to a mobile device. Both a telephone number associated with the mobile device and the assigned SMS data are assigned to a setting in a database stored in an e-mail message server. A subscription to updates related to an e-mail message thread associated with the e-mail message server is created. The creation of the subscription includes correlating the telephone number and the SMS data to a unique e-mail message thread identifier of the e-mail message thread. The updates related to the e-mail message thread are sent to the mobile device via the e-mail message server.