| FAIL | Reverse DNS entries for MX records | ERROR: The IP of one or more of your mail server(s) have no reverse DNS (PTR) entries/* (if you see "Timeout" below, it may mean that your DNS servers did not respond fast enough)*/. 2.1 says you should have a reverse DNS for all your mail servers. It is strongly urged that you have them, as many mailservers will not accept mail from mailservers with no reverse DNS entry. You can double-check using the 'Reverse DNS Lookup' tool at the site if you recently changed your reverse DNS entry (it contacts your servers in real time; the reverse DNS lookups in the DNS report use our local caching DNS server). The problem MX records are: xxx.xxx.xxx.xxx.in-addr.arpa [No reverse DNS entry (rcode: 3 ancount: 0) )] |
| FAIL | All nameservers respond | ERROR: Some of your nameservers listed at the parent nameservers did not respond. The ones that did not respond are: 218.30.103.100 Note: If you are running a Watchguard Firebox with DNS Proxy enabled, there may be a bug causing port numbers get mixed up -- if this is the case, you can contact Watchguard to see if they have a fix. |
| FAIL | Domain A Lookup | ERROR: I couldn't find any A records for xxx.net.cn. But I did find a referral to www.xxx.net.cn. (and maybe others). If you want a website at xxx.net.cn (as well as www.xxx.net.cn), you will need an A record for xxx.net.cn. If you do not want a website at xxx.net.cn, you can ignore this error. |

| 欢迎光临 邮件服务器-邮件系统-邮件技术论坛(BBS) (http://bbs.5dmail.cn/) | Powered by Discuz! X3.2 |