getUserEmailBulk

GET /rest/api/3/user/email/bulk HTTP/1.1

{
  "accountId": {
    "description": "The account IDs of the users for which emails are required. An `accountId` is an identifier that uniquely identifies the user across all Atlassian products. For example, `5b10ac8d82e05b22cc7d4ef5`. Note, this should be treated as an opaque identifier (that is, do not assume any structure in the value).",
    "required": true,
    "location": "query",
    "type": "array"
  }
}

{
  "additionalProperties": true,
  "properties": {
    "accountId": {
      "description": "The accountId of the user",
      "type": "string"
    },
    "email": {
      "description": "The email of the user",
      "type": "string"
    }
  },
  "type": "object"
}