Gmail issues
Broad Gmail delivery or placement problems spanning Postmaster signals, spam, and throttling.
- Reading time:
- 5 min
- Difficulty:
- Intermediate
- Estimated duration:
- 5 min
- Prerequisites:
- None
- Last updated:
- 2026-07-15
- Author:
- empire
Problem summary
Broad Gmail delivery or placement problems spanning Postmaster signals, spam, and throttling.
Severity: High
Symptoms
- Concentrated failures or junking at Gmail
- Postmaster Tools shows poor domain/IP reputation
- Other providers comparatively healthy
Possible causes
- Gmail-specific reputation or spam-rate thresholds
- Authentication alignment problems
- Engagement and complaint patterns at Google
How to diagnose
- Review Postmaster Tools dashboards end-to-end
- Open Gmail spam and promotions Solve pages for placement detail
- Verify one-click unsubscribe and spam rate trends
How to fix
- Follow Google sender guidelines remediation
- Fix auth, reduce spam rate, stabilize volume
- Split risky traffic from trusted transactional streams
How to verify
- Postmaster reputation and spam rate improve
- Gmail seed placement recovers
Prevention
- Stay enrolled in Postmaster Tools
- Watch Gmail spam rate as a leading indicator
When to escalate
- Production mail is failing for a material share of recipients after remediation attempts
Related Problems
- Apple Mail issuesProblems observed primarily in Apple Mail / iCloud paths — filtering, privacy-driven open noise, or junking.
- Microsoft issuesOutlook.com and Microsoft 365 delivery problems — junk, throttling, or blocking.
- Yahoo issuesYahoo and AOL delivery or spam-folder problems concentrated at those providers.