More than 1 million sexually transmitted infections are acquired worldwide every day. A major challenge is getting diagnosed patients to notify their sexual partners, a conversation nobody wants to have. As a result, many clinics struggle to meet government targets for partner notification rates. The SXT Partner Notification Service enables patients to notify their previous sexual partners anonymously. Partners receive an SMS message telling them that they need to get tested and helping them finding a clinic nearby. When a partner gets tested, the SXT service automatically updates the originating clinic’s records, closing the loop between the original patient and their partner.