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Description

The Gmail Postmaster Tools web interface has been upgraded to V2 with new metrics and improved data accuracy. However, the API is still limited to V1 endpoints which are showing different (outdated) values compared to the V2 web interface. We've been informed that V1 data is no longer reliable, but there's no documented way to access V2 data programmatically.

Code

base_url = "https://postmaster.google.com"
endpoints = [
    # Traffic Stats attempts
    "/v2/_/PostmasterUi/trafficStats",
    "/v2/_/PostmasterUi/getTrafficStats",
    "/v2/domains/{domain}/trafficStats",
    "/v2/_/PostmasterUi/data/getTrafficStats",
    
    # Other attempts
    "/v2/_/PostmasterUi/data/batchGet",
    "/v2/_/PostmasterUi/getSpamData",
    "/v2/_/PostmasterUi/getDomainData"
]
# All return 404 errors while the web UI shows data at:
# https://postmaster.google.com/v2/spam?domain={domain}

Output

Status: 404 Response: Error 404 (Not Found)!!1

Tried both GET and POST methods with various parameter placements:

• Query parameters (?domain=example.com)
• JSON body {"domain": "example.com"}
• URL path parameters (/domains/example.com/trafficStats)

Steps

1. Access V2 data through web UI at https://postmaster.google.com/v2/spam
2. Attempt to access same data through API using V1 endpoints
3. Notice significant discrepancies between V1 API data and V2 web interface
4. Attempt various V2 endpoint patterns including trafficStats variations (all return 404)
5. Try both GET and POST methods with different parameter placements