People with mental illness usually experience higher rates of disability and mortality. Often, health care systems do not adequately respond to the burden of mental disorders worldwide. The number of health care providers dealing with mental health care is insufficient in many countries. Equal access to necessary health services should be granted to mentally ill people without any discrimination. E-mental health is expected to enhance the quality of care as well as accessibility, availability and affordability of services. This paper examines under what conditions e-mental health can contribute to realising the right to health by using the availability, accessibility, acceptability and quality (AAAQ) framework that is developed by the Committee on Economic, Social and Cultural Rights. Research shows e-mental health facilitates dissemination of information, remote consultation and patient monitoring and might increase access to mental health care. Furthermore, patient participation might increase, and stigma and discrimination might be reduced by the use of e-mental health. However, e-mental health might not increase the access to health care for everyone, such as the digitally illiterate or those who do not have access to the Internet. The affordability of this service, when it is not covered by insurance, can be a barrier to access to this service. In addition, not all e-mental health services are acceptable and of good quality. Policy makers should adopt new legal policies to respond to the present and future developments of modern technologies in health, as well as e-Mental health. To analyse the impact of e-mental health on the right to health, additional research is necessary.