B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
0.1%
0.1% -- user reported spam rate threshold for Google sender guidelines (2026)
Google's sender guidelines recommend keeping user-reported spam rates below 0.1%.
- Recommended threshold to stay below
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
0.1%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Google
Primary
Tier A
https://docs.migma.ai/advanced-features/email-deliverability-best-practices ↗
Source Article
Email Deliverability Best Practices - MigmaAI
Migma is built for permission-based email. Do not use Migma for cold outreach, purchased lists, scraped contacts, or people who did not ask to hear from you. See Permission-based sending.
Delivery Readiness
Check these four areas before any high-volume or important campaign.Start With Consent
Mailbo…
Original Research
Google
· Original study ↗
Methodology
Platform sender guideline threshold (Google); escalation threshold at 0.3%
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Google sender guidelines: 0.1% user reported spam rate threshold. Source: Google (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/google-spam-threshold-0-1
HTML Embed
<blockquote cite="https://lighthousedata.io/data/google-spam-threshold-0-1" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>0.1%</strong> -- user reported spam rate threshold for Google sender guidelines<br><small>Source: Google (2026) · <a href="https://lighthousedata.io/data/google-spam-threshold-0-1" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Related Statistics
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.