(Unity C#) Email Sender (redirects to Email App)

EmailSender.cs

using UnityEngine;
using UnityEngine.Networking;

public class EmailSender : MonoBehaviour
{

    public const string USER_SUBJECT = "Email Subject";
    public const string USER_RECIPIENT = "receipient_email@gmail.com";

    public const string PREFIX_MAIL_TO = "mailto:";

    #region Public API

    public void SendEmail_UserRequest()
    {
        var body = EscapeString("Hi there!\n\n " +
            "This is a sample email for you.\n\n " +
            "Hope you're doing great.\n\n " +
            "--------------------------");

        Debug.Log($"{GetType().Name}.SendEmail_UserRequest() sending email...", gameObject);

        Application.OpenURL(PREFIX_MAIL_TO + USER_RECIPIENT 
            + "?subject=" + USER_SUBJECT 
            + "&body=" + body);
    } 

    #endregion //Public API

    #region Client Impl

    private string EscapeString(string URL) => 
        UnityWebRequest.EscapeURL(URL).Replace("+", "%20");

    #endregion //Client Impl

}