I kwow that this may not be directly related to Umbraco, but I can't seem to get my Unobtrusive validation to work. Do I have to configure something else? Something in the Startup.cs?

I've added these scripts:

<script src="~/js/jquery-3.5.1.min.js"></script>
<script src="~/js/jquery-migrate-3.0.0.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.3/jquery.validate.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-ajax-unobtrusive/3.2.6/jquery.unobtrusive-ajax.min.js"></script>

This is my model:

public class ContactFormModel
    {
        public const string TempDataKey = "ContactSuccess";

        public string PlaceHolderName { get; } = string.Empty;
        public string PlaceHolderEmail { get; } = string.Empty;
        public string PlaceHolderSubject { get; } = string.Empty;
        public string PlaceHolderMessage { get; } = string.Empty;
        public string ButtonText { get; } = string.Empty;
        public string SuccesMessage { get; } = string.Empty;
        public string ErrorMessage { get; } = string.Empty;

        [Required]
        public string Name { get; set; }

        [Required]
        [EmailAddress]
        public string Email { get; set; }

        [Required]
        [MaxLength(500)]
        public string Message { get; set; }

        public ContactFormModel()
        {
        }

        public ContactFormModel(Home home)
        {
            PlaceHolderName = home.ContactFormNameLabel;
            PlaceHolderEmail = home.ContactFormEmailLabel;
            PlaceHolderMessage = home.ContactFormMessageLabel;
            ButtonText = home.ContactFormButtonText;
            SuccesMessage = "Uw mail is verzonden";
            ErrorMessage = "Er is iets misgegaan bij het verzenden van uw mail";
        }
    }

And this is my form:

@using(Html.BeginUmbracoForm<HomeController>(nameof(HomeController.SendMail), FormMethod.Post))
{
    <div class="col-md-12">
        <input type="text" asp-for="Name" id="name" placeholder="@Model.PlaceHolderName">
    </div>
    <div class="col-md-12">
        <input type="email" asp-for="Email" id="email" placeholder="@Model.PlaceHolderEmail">
    </div>
    <div class="col-md-12">
        <textarea asp-for="Message" id="message" cols="40" rows="3" placeholder="@Model.PlaceHolderMessage"></textarea>
    </div>
    <div class="col-md-12">
        <button class="butn-dark mt-15" type="submit"><a href="#0"><span>@Model.ButtonText</span></a></button>
    </div>
}