B
Evidence Grade B
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83.1%
83.1% -- average inbox placement rate for major email service providers (2024)
According to EmailToolTester's 2024 benchmark report, the average inbox placement rate across major ESPs is 83.1%.
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Lighthouse Research Team
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Source verified
Evidence graded
Value
83.1%
Unit
Percentage
Data Vintage
2024
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
75
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
EmailToolTester
Primary
Tier B
https://e-warmup.com/blog/how-to-improve-email-deliverability-guide/ ↗
Source Article
How to Improve Email Deliverability Without Hurting Sender Reputation (2026 Guide)
Table of Contents
Nearly 88% of email senders cannot correctly define what “email delivery rate” even measures, according to Mailgun’s State of Email Deliverability 2025 report.
And yet, those same people are using it as their primary benchmark for campaign success. That’s a bit like a pilot checkin…
Original Research
EmailToolTester
· Original study ↗
Methodology
Cited from EmailToolTester 2024 benchmark report
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
major email service providers: 83.1% average inbox placement rate. Source: EmailToolTester (2024). Via Lighthouse Intelligence -- https://lighthousedata.io/data/average-inbox-placement-rate-esps-2024
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<blockquote cite="https://lighthousedata.io/data/average-inbox-placement-rate-esps-2024" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>83.1%</strong> -- average inbox placement rate for major email service providers<br><small>Source: EmailToolTester (2024) · <a href="https://lighthousedata.io/data/average-inbox-placement-rate-esps-2024" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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