0
我試圖用我的客戶的地址（[email protected]）向我的客戶的客戶發送電子郵件。 和我的客戶已經通過SPF將我的smtp服務器配置到他們的域中。 以下是用於發送電子郵件的C＃代碼。不允許代表我的客戶在office365上發送電子郵件
MailMessage mail = new MailMessage();
//set the addresses
mail.From = new MailAddress("[email protected]");
mail.To.Add("[email protected]");
mail.Subject = "This is an email";
mail.Body = "this is a sample body with html in it. <b>This is bold</b>
<font color=#336699>This is blue</font>";
mail.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
System.Net.NetworkCredential networkCredentialRFE = new
System.Net.NetworkCredential("[email protected]", "Password123");
smtp.Credentials = networkCredentialRFE;
smtp.Host = "outlook.office365.com";
smtp.EnableSsl = true;
smtp.Port = 587;
smtp.Send(mail);
以下是我收到的錯誤： 郵箱不可用。服務器響應是：5.7.60 SMTP;客戶端無權發送此發件人