Click to select the My server requires authentication check box, which is located in the Outgoing Mail Server properties in Outlook Express.
Click to select the My server requires authentication check box, which is located in the Outgoing Mail Server properties in Outlook Express.
阻止发件人需要在服务器上设置才会有这种现象，对方电脑（客户机）上设置是不会影响你发送的。