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回复 41楼 gaochong 的帖子
再次请教各位,我的域名(goupper.com)DNSREPORT现在还有2个warn,1个fail,其中fail我知道是何原因(MX反向解析没做),但2个warn不知如何解决(如下),请各位指点.在此不胜感激
1.Single Point of Failure
WARNING: Although you have at least 2 NS records, there is a chance that they may both point to the same server (one of our two tests shows them being different, the other is unsure; it appears that there are one or more firewall(s) that intercept and alter DNS packets (some versions of Linux reportedly have a built-in firewall that does this, too)), which would result in a single point of failure. You are required to have at least 2 nameservers per RFC 1035 section 2.2.
2.SPF record
Your domain does not have an SPF record. This means that spammers can easily send out E-mail that looks like it came from your domain, which can make your domain look bad (if the recipient thinks you really sent it), and can cost you money (when people complain to you, rather than the spammer). You may want to add an SPF record ASAP, as 01 Oct 2004 was the target date for domains to have SPF records in place (Hotmail, for example, started checking SPF records on 01 Oct 2004).
[ 本帖最后由 gaochong 于 2006-12-19 18:44 编辑 ] |
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