I am trying to implement the Nedfinity Mailchimp MVC package in an Umbraco 7 solution. It works fine until you try to add an existing email adress into mailchimp. I get this remote server error 500:

[MailChimpApiException: Error while making API call: {"status":"error","code":214,"name":"List_AlreadySubscribed","error":"[email protected] is already subscribed to the list."}]

Has anyone of you done a exceptionhandler for a remote server 500 error?

Or is there perhaps another solution to this?

My implementation is close to what Nedfinity suggests:

<div class="mailchimp-subscription">

    @if (TempData["MailChimpSubscribeSuccessMessage"] != null)
    {

        <div class="success-message">
            @Html.Raw(TempData["MailChimpSubscribeSuccessMessage"])
        </div>


    }
    else
    {

        using (Html.BeginUmbracoForm<MailChimpSurfaceController>("Subscribe", new { id = "Nedfinity_MailchimpSubscription" }))
        {
            <fieldset>
                @Html.ValidationSummary()

                <div class="input-group input-group-sm">
                    <span class="input-group-addon">
                        <span class="glyphicon glyphicon-envelope"></span>
                    </span>
                    @Html.TextBoxFor(m => m.EmailAddress, new { @class = "form-control", placeholder = "E-mail addresse" }) 
                    @Html.AntiForgeryToken()
                    <input type="submit" class="form-control" value="@Umbraco.GetDictionaryValue("NedfinityMailChimp.SubscribeButtonText")" />     
                </div>
                </fieldset>
        }
    }
</div>

Any ideas anyone?

/Jesper