# 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:** 2

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**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, 4:23am UTC](https://meta.discourse.org/t/isp-based-anti-spam-countermeasures/20082/2 "2014-09-16T04:23:53Z")

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Why don’t you just block signup via all IP ranges that these ISPs serve? You can easily block IP ranges via settings, logs, screened IPs. (and using the built in delete spammer function auto blocks the IP and email associated with the spammer)

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