B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Aging
69%
69% -- spam report rate for email recipients (2024)
According to OptinMonster, 69% of email recipients report email as spam based solely on the subject line.
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
69%
Unit
Percentage
Data Vintage
2024
Entity
Geography
US
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
50
Source Trust
60
Citation Chain
60
Independence
30
Methodology
45
Freshness
95
Source
Optimonster
Primary
Tier C
https://www.grabdigital.co/post/what-are-the-best-email-marketing-subject-lines ↗
Source Article
What Are the Best Email Marketing Subject Lines?
Summary
From emojis to poetry, what type of email marketing subject line has the best chance of winning your customer's heart?
What makes good subject lines?
Imagine a day filled with nothing but emails, writing emails and clicking on coworkers emails, and dreading an email from your boss. For many …
Original Research
Optimonster
· Original study ↗
Methodology
Cited from Optimonster; secondary source
Methodology documented
Segmentation
IndustryeCommerce
RegionUS
RoleAll marketers
Channelemail
Cite this stat
Plain Text
email recipients: 69% spam report rate. Source: Optimonster (2024). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-spam-report-subject-line-69
HTML Embed
<blockquote cite="https://lighthousedata.io/data/email-spam-report-subject-line-69" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>69%</strong> -- spam report rate for email recipients<br><small>Source: Optimonster (2024) · <a href="https://lighthousedata.io/data/email-spam-report-subject-line-69" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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