B
Evidence Grade B
Graded
under review
Safe to Cite
Current
2%
2% -- email bounce rate benchmark for transactional email programs (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
2%
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
MailerSend
Primary
Tier B
https://www.mailersend.com/blog/transactional-email-explained ↗
Source Article
What's a Transactional Email?
Ultimate guide: Transactional email explained (what, why and how)
- What is a transactional email?
- Marketing email differences
- Types of transactional emails
- Confirmation and invoice emails
- Specific request emails
- Event-driven notification emails
- Behavioral emails
- Account-based notifica…
Original Research
MailerSend
· Original study ↗
Methodology
Vendor-stated 'accepted benchmark' for email bounce rate in the context of transactional email deliverability; no underlying study or methodology cited. Article advises aiming for anything lower than 2%.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
transactional email programs: 2% email bounce rate benchmark. Source: MailerSend (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/email-bounce-rate-benchmark-2pct
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<blockquote cite="https://lighthousedata.io/data/email-bounce-rate-benchmark-2pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>2%</strong> -- email bounce rate benchmark for transactional email programs<br><small>Source: MailerSend (2026) · <a href="https://lighthousedata.io/data/email-bounce-rate-benchmark-2pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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