# ISP-based anti-spam countermeasures

**URL:** <https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082>\
**Category:** Feature\
**Created:** [15 Septiembre, 2014 17:41 UTC](https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082 "2014-09-15T17:41:36Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![callmevlad](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/callmevlad/32/114850_2.png) [@callmevlad](https://meta.discourse.org/u/callmevlad)\
**Post date:** [16 Septiembre, 2014 15:23 UTC](https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082/6 "2014-09-16T15:23:29Z")

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I tried that first actually, but it doesn’t seem to work - shows a “Ip address is invalid” error:

 ![](https://global.discourse-cdn.com/meta/original/3X/e/6/e67494c79659a3495925dae47be0a2120e324498.png)

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