1.263xmail 提供了此错误:ip and spf record not match 。
2.internet-media.home.pl 提供了此错误:You are sending spam (check http://www.spamhaus.org/query/bl?ip=xxx.xx.xxx.xxx)
3.natrohost.com 提供了此错误:This server requires PTR for unauthenticated connections.
4.s218.sureserver.com 提供了此错误: "Refused. You have no reverse DNS entry. Contact abuse@suresupport.com for details."
5.mx1.alumil.com 提供了此错误: <xxx@xxx.com>... Sender IP must resolve
6.VA3EHSMHS030.bigfish.com 提供了此错误:draka-ep@prysmiangroup.com: Recipient address rejected: Access Denied
7.BAY0-MC2-F52.Bay0.hotmail.com 提供了此错误:OU-002 (BAY0-MC2-F52) Unfortunately, messages from xxx.xxx.xxx.xxx weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
8.server-7.tower-21.messagelabs.com 提供了此错误:mail rejected because your IP is in the PBL. See [url]http://www.spamhaus.org/pbl/