Verified Bots Directory

Directory / Social previews

Yahoo Mail Proxy

Verifiable

Yahoo Mail's content-fetch proxy. It retrieves images and other assets embedded in the URLs of messages sent to Yahoo Mail users, so that the content is served through Yahoo rather than fetched directly by the recipient's browser. Yahoo documents the user agent and publishes the address ranges the proxy fetches from.

Operated by Yahoo · Official documentation

User agents

Patterns this directory matches, with real observed strings.

  • regexYahooMailProxy
  • observedYahooMailProxy; https://senders.yahooinc.com/mail-proxy-servers

How to verify

Documented static ranges: 27.123.32.0/19, 67.195.0.0/16, 69.147.64.0/18, 87.248.96.0/19, 98.138.0.0/15, 106.10.128.0/17, 115.178.0.0/20, 119.161.0.0/19, 200.152.160.0/20, 202.43.192.0/19, 209.73.160.0/19, 212.82.96.0/19, 216.115.96.0/20, 2001:4998::/32, 2406:2000::/32, 2406:6e00::/32, 2804:1bc::/32, 2a00:1288::/32

IP ranges (18)

Refreshed daily from the operator's feed. Also available as /data/ips/yahoo-mail-proxy.ips and /data/bots/yahoo-mail-proxy.json.

106.10.128.0/17
115.178.0.0/20
119.161.0.0/19
200.152.160.0/20
2001:4998::/32
202.43.192.0/19
209.73.160.0/19
212.82.96.0/19
216.115.96.0/20
2406:2000::/32
2406:6e00::/32
27.123.32.0/19
2804:1bc::/32
2a00:1288::/32
67.195.0.0/16
69.147.64.0/18
87.248.96.0/19
98.138.0.0/15

Good Bot Practices scorecard

  • Identifies honestly

    Stable UA token documented (1 pattern)

  • Verifiable

    Verifiable

  • Respects robots.txt

    Does not honor robots.txt

  • Behaves

    Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset

  • Reachable operator

    Operator and documentation published

Measured against the Good Bot Practices.