Skip to content
YA

YahooMailProxy

GoodBotVerifiedBOT

A proxy service used by Yahoo Mail to pre-fetch and cache content for links embedded within emails to improve user experience and security. Operated by Yahoo.

GoodBot
Assessment
Page Preview
Category
BOT
Kind
1
Data sources
AI-generated summary, drawn from Cloudflare, operator docs, and community data

What is YahooMailProxy?

YahooMailProxy is a specialized service operated by Yahoo that acts as an intermediary between external web content and the Yahoo Mail platform. When a user receives an email containing a URL, this bot fetches the page content to generate link previews and perform security checks before the user interacts with the link. It ensures that the email interface remains responsive and that users are protected from potentially malicious content by pre-scanning the destination.

Helpful — It enhances the user experience in Yahoo Mail by pre-loading link metadata and content, allowing for faster previews and security scanning.

Identification

Bot name
YahooMailProxy
Operator
Yahoo
Category
Page Preview
Kind
BOT
Verification
Verified bot
Cloudflare slug
yahoo-mail-proxy
User-agent patterns
YahooMailProxy
User-agent string
YahooMailProxy; https://help.yahoo.com/kb/yahoo-mail-proxy-SLN28749.html
Main use cases
Link preview generationEmail content security scanningPerformance optimization for email clients

Why it crawls your site

The bot crawls websites to extract metadata, such as page titles, descriptions, and images, which are then displayed as rich previews within the Yahoo Mail interface. By fetching this data server-side, Yahoo reduces the latency for the end user and performs necessary security analysis to identify phishing or malware risks. Webmasters can verify the bot's legitimacy by checking the provided Yahoo help documentation and ensuring the requests originate from verified Yahoo IP ranges.

Block or allow YahooMailProxy

Block it

Add a Disallow rule for YahooMailProxy in your robots.txt file. You can also block at the server level using your web server configuration or CDN firewall rules to filter requests matching the user-agent string.

# Block YahooMailProxy from crawling your entire site
User-agent: YahooMailProxy
Disallow: /

# Allow YahooMailProxy full access
User-agent: YahooMailProxy
Allow: /
Allow & verify

Ensure your robots.txt allows YahooMailProxy. Verify requests by checking the user-agent string.

Traffic & trends

Cloudflare Radar traffic

No Cloudflare traffic data available.

Google Trends interest

Loading trend data…

Data sources

This profile is compiled from the following sources.

CloudflareRadar
Last updated July 26, 2026