EWS Como criar um E-mail simples

Eis um método que podes utilizar para enviar um mail simples via Exchange Web Services

Tens de adicionar a referencia ao teu projecto: Microsoft.Exchange.WebServices

/// <summary>
/// Criars the email simples.
/// </summary>
/// <param name="service">The service.</param>
/// <param name="subject">The subject.</param>
/// <param name="body">The body.</param>
/// <param name="mailTo">The mail to.</param>
public static void CriarEmailSimples(ExchangeService service, string subject,
    string body, List<string> mailTo)
{
    // Create an e-mail message and identify the Exchange service.
    EmailMessage message = new EmailMessage(service)
    {
        /* Subject*/
        Subject = subject, /* Body*/
        Body = new MessageBody(body)
    };

    // Recipients
    foreach (string recipientes in mailTo)
    {
        message.ToRecipients.Add(recipientes);
    }

    // Send the mail. This makes a trip to the EWS server.
    message.SendAndSaveCopy();
}