IIS doesn't recognise view model annotations
In your example you have the following property on your Model.
[Required(ErrorMessage="Your Name Required")][Display(Name = "Your Name")][DataType(DataType.Text)][MaxLength(120, ErrorMessage = "Must be under 120 characters")] public String YourName { get; set; }So, the property "YourName" should get a label of "Your Name".
In your view, though, you aren't displaying the YourName property.
@Html.LabelFor(model => model.FromName)@Html.EditorFor(model => model.FromName) So you need to add similar attributes to your FromName property.
MVC3 supports the [StringLength] attribute, while [MinLenght] and [MaxLength] come with Entity Framework.Could you try this instead of MaxLength?
[StringLength(120, ErrorMessage = "Must be under 120 characters")]
I'm very new to razor but I thought DisplayTextFor didn't give you a label.Wouldn't @Html.LabelFor() make more sense?