退信:
<dls@baidu.com>:
61.135.163.61failedafterIsentthemessage.
Remotehostsaid:5505.7.1MessagerejectedasspambyContentFiltering.
<jiangsu@baidu.com>:
61.135.163.61failedafterIsentthemessage.
Remotehostsaid:5505.7.1MessagerejectedasspambyContentFiltering.
发件方发送的邮件可能含有垃圾信息也有可能发件方的IP被列入了黑名单