554 failed MAIL FROM verification with the FROM field in message header

退信内容：554 failed MAIL FROM verification with the FROM field in message header
退信原因：From一致性检测问题
解决方案：不要勾选邮件伪造功能，勾选以后，就是邮件对话的MAIL FROM跟邮件头显示的From必须保持一致的意思。