我的一个站也遇到类似情况,收到信的同时流量大减,这个站因为外链spam的原因在4月20日已经被G大神修理了。下面是信件内容:
We've detected that some of your site's pages may be using techniques that are outside Google's Webmaster Guidelines. If you have any questions about how to resolve this issue, please see our Webmaster Help Forum for support.