namespace TechHelper.Features { public interface IEmailSender { /// /// 使用 MailKit 通过邮箱发送邮件 /// /// 收件人邮箱地址 /// 邮件主题 /// 邮件正文 (支持 HTML) /// public Task SendEmailAsync(string toEmail,string subject, string body); public Task SendEmailAsync(string toEmail, string body); public Task SendEmailAuthcodeAsync(string toEmail, string authCode); } }