DNS blacklists-these are published lists of hosts known to send and forward spam or to send or forward spam.

dns黑名单——这些是发布的主机列表，其中包括已知的、将发送并转发垃圾邮件的主机。

youdao

While this might seem a silly caution, it's warranted; development lists are always inundated with spam and requests like this, and they're not appreciated.

虽然这种提醒看上去有些傻，但事实就是这样。开发列表中总是充斥着这一类的问题，这些问题都是不受欢迎的。

youdao

If the post can be detected as spam on one site, it can prepare the other sites to identify it as such, similar to the hot lists of spam bot registration E-mail and IP addresses described above.

如果在某个站点上可以检测出垃圾帖子，它就能让其他站点也能辨别出该帖子，这类似于上面描述的垃圾信息bot登记电子邮件和IP地址的热门列表。

youdao

It would also include MAPS' Relay Spam Stopper, which lists unsecured relays that have been used to transmit spam.

CNN: Next wave of attacks against spammers underway

To block spam, large ISPs and corporations use a multitiered system of filters, lists of known spammer addresses and sometimes even staff who can recognize incoming spam and thwart it manually.

FORBES: Spam Warfare

To block spam, large ISPs and corporations use a multitiered system of filters and lists of known spammer addresses and sometimes even staff who can recognize incoming spam and manually thwart it.

FORBES: Spam Warfare