B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Aging
12.7%
12.7% -- unsure opt in method share for Businesses (global email senders) (2024)
12.7% of businesses in Mailjet's global sender survey are unsure whether they use single opt-in or double opt-in.
Attribution:
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Lighthouse Research Team
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Source verified
Evidence graded
Value
12.7%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Mailjet
Primary
Tier C
https://www.exactverify.com/blog/single-vs-double-opt-in ↗
Source Article
Single vs Double Opt-In: Which Improves Email Quality?
There’s one decision in email marketing that directly affects list quality, but often doesn’t get enough attention. Can you guess what it is?
It’s the choice between single opt-in and double opt-in.
At a glance, both do the same job: they collect email addresses. So why are there two methods? And wh…
Original Research
Mailjet
· Original study ↗
Methodology
Cited from Mailjet global sender surveys; article does not specify survey year or sample size, so collection-era year used as approximation.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Businesses (global email senders): 12.7% unsure opt in method share. Source: Mailjet (2024). Via Lighthouse Intelligence -- https://lighthousedata.io/data/unsure-opt-in-method-share-mailjet-survey
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<blockquote cite="https://lighthousedata.io/data/unsure-opt-in-method-share-mailjet-survey" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>12.7%</strong> -- unsure opt in method share for Businesses (global email senders)<br><small>Source: Mailjet (2024) · <a href="https://lighthousedata.io/data/unsure-opt-in-method-share-mailjet-survey" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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