HI

If anyone comes here i made a custom datatype for the solution.

In app folder: Add a new class HiddenFieldPageId.cs and add this Add this (Important the "this.Name" must be the name of the file ~/Views/Partials/Forms/Themes/default/Fieldtypes/FieldType.HiddenFieldPageId.cshtml, without "Fieldtype." )

public class HiddenFieldPageId : FieldType
{
    public HiddenFieldPageId()
    {
        //Provider
        this.Id = new Guid("d6a2c406-cf89-11de-b075-55b055d89593");
        this.Name = "HiddenFieldPageId";
        this.Description = "Renders a hiddenfield With value of currentpageid";
        this.Icon = "icon-autofill";
        this.DataType = FieldDataType.String;
        this.SortOrder = 10;
    }
}

In the folder Views\Partials\Forms\Themes\default\Fieldtypes\ copy the Fieldtype.Hiddenfield and rename to FieldType.HiddenFieldPageId.cshtml and paste the code below.

@model Umbraco.Forms.Mvc.Models.FieldViewModel @{
var umbraco = new UmbracoHelper(UmbracoContext.Current);
var currentPage = umbraco.TypedContent(UmbracoContext.Current.PageId);}

Add the code to the Views\Partials\Forms\Emails\Example-template.cshtml

var pageId = Model.DynamicFields.pageId;
var pageUrl = siteDomain + Umbraco.TypedContent(pageId).Url;
var pageName = Umbraco.TypedContent(pageId).Name;

Now you have access to the pagename and url via the id.

Build the solution and add the new formfield to the form