--- title: "Requests a validation token be sent to the given email address for the purpose of resetting a user's password" method: POST path: "/_matrix/client/v3/account/password/email/requestToken" tags: ["Account management"] --- # Requests a validation token be sent to the given email address for the purpose of resetting a user's password `POST /_matrix/client/v3/account/password/email/requestToken` ## Request - Base URL: `https://matrix.org` - URL: `https://matrix.org/_matrix/client/v3/account/password/email/requestToken` - Auth: none declared - TypeScript: (a function with typed inputs; its response is checked against the schema) The homeserver must check that the given email address **is associated** with an account on this homeserver. This API should be used to request validation tokens when authenticating for the `/account/password` endpoint. This API's parameters and response are identical to that of the [`/register/email/requestToken`](https://spec.matrix.org/v1.19/client-server-api/#post_matrixclientv3registeremailrequesttoken) endpoint, except that `M_THREEPID_NOT_FOUND` may be returned if no account matching the given email address could be found. The server may instead send an email to the given address prompting the user to create an account. `M_THREEPID_IN_USE` may not be returned. The homeserver should validate the email itself, either by sending a validation email itself or by using a service it has control over. ## Request body - object - `client_secret` string, required: A unique string generated by the client, and used to identify the validation attempt. It must be a string consisting of the characters `[0-9a-zA-Z.=_-]`. Its length must not exceed 255 characters and it must not be empty. - `email` string, email, required: The email address to validate. - `next_link` string, uri: Optional. When the validation is completed, the identity server will redirect the user to this URL. This option is ignored when submitting 3PID validation information through a POST request. - `send_attempt` integer, required: The server will only send an email if the `send_attempt` is a number greater than the most recent one which it has seen, scoped to that `email` + `client_secret` pair. This is to avoid repeatedly sending the same email in the case of request retries between the POSTing user and the identity server. The client should increment this value if they desire a new email (e.g. a reminder) to be sent. If they do not, the server should respond with success but not resend the email. - `id_access_token` string: An access token previously registered with the identity server. Servers can treat this as optional to distinguish between r0.5-compatible clients and this specification version. Required if an `id_server` is supplied. - `id_server` string: The hostname of the identity server to communicate with. May optionally include a port. This parameter is ignored when the homeserver handles 3PID verification. This parameter is deprecated with a plan to be removed in a future specification version for `/account/password` and `/register` requests. ## Response `200` An email was sent to the given address. - object - `sid` string, required: The session ID. Session IDs are opaque strings that must consist entirely of the characters `[0-9a-zA-Z.=_-]`. Their length must not exceed 255 characters and they must not be empty. - `submit_url` string, uri: An optional field containing a URL where the client must submit the validation token, with identical request and response parameters and error codes to the Identity Service API's [`POST /validate/email/submitToken`](https://spec.matrix.org/v1.19/identity-service-api/#post_matrixidentityv2validateemailsubmittoken) and [`POST /validate/msisdn/submitToken`](https://spec.matrix.org/v1.19/identity-service-api/#post_matrixidentityv2validatemsisdnsubmittoken) endpoints (without the requirement for an access token). The homeserver must send this token to the user (if applicable), who should then be prompted to provide it to the client. If this field is not present, the client can assume that verification will happen without the client's involvement provided the homeserver advertises a sufficiently recent version in the [`GET /versions`](https://spec.matrix.org/v1.19/client-server-api/#get_matrixclientversions) response (ie: r0.5.0). ## Other responses - `400`: The referenced third-party identifier is not recognised by the homeserver, or the request was invalid. The error code `M_SERVER_NOT_TRUSTED` can be returned if the server does not trust/support the identity server provided in the request. - `403`: The homeserver does not allow the third-party identifier as a contact option. --- [API](https://skmtc.dev/matrix/apis/matrix-client-server-api.md) - [All operations](https://skmtc.dev/matrix/apis/matrix-client-server-api/llms.txt) - [OpenAPI document](https://skmtc.dev/matrix/apis/matrix-client-server-api/revisions/c7fe4072c681?raw)