Re: Reverse DNS RFCs and Recommendations

["John Levine" <johnl () iecc com>]

> In the last few hours it has picked off multiple messages from each of these:
> Carol28 () 8447 com
> Jeff17 () 3550 com
> Ronald79 () 0785 com
> Kevin57 () 2691 com
> Deborah76 () 3585 com
> Kimberly34 () 5864 com
> Sarah94 () 0858 com
> zavfdv () 131 com
> qgmklyysyn () 163 com
> pjpeng () 163 com
> fahuyrw () 163 com
> Daniel57 () 4704 com
> Helen95 () 2620 com

163.com is Netease, one of the larger ISPs in China.  If you don't
have any users who speak Chinese, you can probably block it, but if
you do, you'll get complaints.