private static void AddAttachments(Email message, IEmail email) { foreach (var attachment in message.EmailAttachments.Where(a => a.Enabled)) { if (string.IsNullOrEmpty(attachment.ContentID)) { email.AddAttachment(attachment.Name, attachment.Data, attachment.MIMEType); } else { email.AddAttachment(attachment.Name, attachment.Data, attachment.MIMEType, attachment.ContentID); } } }