[AllowAnonymous, Route("confirm-email", Name = AccountControllerRoute.GetConfirmEmail)]
public async Task<ActionResult> ConfirmEmail(int accountId, string token)
{
    if (accountId == 0 || token == null)
        return HttpNotFound();

    var account = await AccountManager.FindByIdAsync(accountId);

    if (account == null)
        return HttpNotFound();

    if (account.EmailConfirmed)
        return View("ConfirmEmail"); //return page that will say the token has expired

    var result = await AccountManager.ConfirmEmailAsync(accountId, token);

    var emailBody = string.Empty;
    if (result.Succeeded)
    {
        if(account.Institution == null)
        {
            // send message notifying admin that a new institution needs review and setup
            emailBody = $"{account.UserName}|{account.profile.contact}|{account.profile.institutionName}|{account.profile.institutionAddress}";
            await AccountManager.SendEmailAsync(account.Id, EmailNames.NewInstitutionRequest, "");

            return View("ConfirmEmail");
        }

         // Pass Name, Username
        emailBody = $"{account.Name}|{account.UserName}";

        if (account.Institution.IsClient)
        {
            if (account.Institution.Licence.AllowedAccounts == 0)
            {
                await AccountManager.SendEmailAsync(account.Id, EmailNames.NewUserRequest, emailBody);
                return View("ConfirmEmail"); // send a different message notifying admin about exceeding allow accounts
            }

            // send message notifying admin that a new user request for access
            await AccountManager.SendEmailAsync(account.Id, EmailNames.NewUserRequest, emailBody);
            return View("ConfirmEmail");
        }
        else
        {
            // send message notifying admin that a new user has registered
            await AccountManager.SendEmailAsync(account.Id, EmailNames.NewUserNotificationForSA, emailBody);

            return View("ConfirmEmail");
        }
    }

    return View("Error");
}

public class PostalEmailService : IIdentityMessageService
{
    public Task SendAsync(IdentityMessage message)
    {
        if (message == null)
            throw new ArgumentNullException("message");

        EmailBase email;
        switch (message.Subject)
        {
            case EmailNames.ResetPassword:
                email = new ResetPasswordEmail {To = message.Destination, Link = message.Body};
                break;

            case EmailNames.NewUserRequest:
                string name = message.Body.Split('|')[0];
                string userName = message.Body.Split('|')[1];
                email = new NewUserRequestEmail { To = "dummy@gmail.com", Name = name, UserName = userName };
                break;
            default:
                throw new InvalidOperationException("Unknown email '{0}'.".FormatWith(message.Subject));
        }

        return email.SendAsync();
    }
}