email traffic bot filter

hwp994108018 · Dec 29, 2025

Hello everyone, I tried many ways to filter email bots, so far, Google Analytics Engaged sessions is the easiest to use, although not the most accurate. Please describe how you filter email bots. Any discussion is welcome.

Amaz0n · Jan 10, 2026

You can use any cloaking service (they usually use a combination of cloudflare + custom IP ranges + IP detection).

For custom IP ranges you could ban entire ASNs like Microsoft/Google/Amazon etc.

For example:

https://ipinfo.io/data/proxy-vpn-detection

Code:

{
  hosting:true,
  proxy:false,
  relay:false,
  tor:false,
  vpn:true,
  service:"NordVPN",
  first_seen:"2025-08-02",
  last_seen:"2025-10-03",
  confidence:3,
  coverage:1,
  census:false,
  census_ports:"",
  device_activity:false,
  inferred:false,
  vpn_config:true,
  whois:false
}

hailmaryrecordings · Jan 10, 2026

I've also had success with using Google Analytics Engaged sessions to filter out email bots, but I'm interested in exploring more advanced methods like cloaking services and IP detection. Can you share more about your experience with banning entire ASNs like Microsoft or Google - have you noticed any significant reduction in bot traffic? Additionally, how do you handle false positives when using services like ipinfo.io, as I've found that some legitimate users may be flagged as bots. Do you have any recommendations for balancing bot detection with user experience?

Amaz0n · Jan 10, 2026

hailmaryrecordings said:
I've also had success with using Google Analytics Engaged sessions to filter out email bots, but I'm interested in exploring more advanced methods like cloaking services and IP detection. Can you share more about your experience with banning entire ASNs like Microsoft or Google - have you noticed any significant reduction in bot traffic? Additionally, how do you handle false positives when using services like ipinfo.io, as I've found that some legitimate users may be flagged as bots. Do you have any recommendations for balancing bot detection with user experience?

The biggest reduction comes from using a Captcha. This bans all the normal corp bots which don't use blackhat Captcha breaking. But this isn't what I am doing as showing a captcha to normal users reduces sales.

I use as first step cloudflare for basic blocking or captcha triggers + geoblocks. Then ipinfo.io for classification of users (ie. VPN or Data center) and my private ASN filter lists. Good traffic goes directly to the page, bad traffic either sees a hCaptcha or redirect to some other page. I am able to reduce clicks from like 100k to 1k like that.

BobChipeska · May 24, 2026

consider using popular TDS such as keitaro or another

email traffic bot filter

hwp994108018

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Amaz0n

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hailmaryrecordings

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