# ISP-based anti-spam countermeasures

**URL:** <https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082>\
**Category:** Feature\
**Created:** [September 15, 2014, 5:41pm UTC](https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082 "2014-09-15T17:41:36Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![codinghorror](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/codinghorror/32/110067_2.png) [@codinghorror](https://meta.discourse.org/u/codinghorror)\
**Post date:** [September 16, 2014, 2:07pm UTC](https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082/4 "2014-09-16T14:07:18Z")

</div>

You can also enter

`39.36.*` or `39.36.*.*`

And it will get converted to the correct value.

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_[View the full topic](https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082)._