using System; namespace Library.Eaf.Core.Smtp; public class EmailMessage { public EmailMessage() { } public EmailMessage(string subject, string body, MailPriority priority = MailPriority.Normal) { } public string Body { get; } public MailPriority Priority { get; } public string Subject { get; } public EmailMessage PriorityHigh() => throw new NotImplementedException(); public EmailMessage PriorityLow() => throw new NotImplementedException(); public EmailMessage PriorityNormal() => throw new NotImplementedException(); public EmailMessage SetBody(string body) => throw new NotImplementedException(); public EmailMessage SetPriority(MailPriority priority) => throw new NotImplementedException(); public EmailMessage SetSubject(string subject) => throw new NotImplementedException(); }