Benchmark report
Cold Email Deliverability Benchmarks 2026
A practical planning report for teams checking whether a cold email campaign is ready to scale without creating preventable sender, copy, or complaint-risk pressure.
How to use this report
Treat the benchmarks as planning inputs. Use them to prioritize message quality, segmentation, and deliverability checks before scaling volume.
Download CSV5 bands
sender-readiness model
0-100
risk-pressure scale
4 checks
minimum pre-send gates
Executive summary.
Cold email deliverability is easier to protect before volume increases. The strongest programs separate sender setup, list quality, copy risk, and compliance checks instead of treating deliverability as one score after a campaign is already live.
Use these benchmarks as planning bands, not delivery guarantees. A campaign can have strong copy and still fail if authentication, audience quality, consent logic, or complaint handling is weak.
Methods.
This public report uses Folderly's deliverability-risk taxonomy, visible tool workflows on Generate, and public mailbox-provider requirements to define planning bands for outbound teams.
The chart values are normalized risk-pressure benchmarks on a 0-100 scale. They are designed for campaign planning and QA prioritization, not as a claim about a private customer dataset.
Benchmarks should be refreshed when mailbox-provider requirements, authentication expectations, or Folderly checker rules materially change.
Download data
Download the benchmark bands and issue-pressure model as a CSV for campaign QA planning.
Download CSVBenchmarks
Chart takeaways.
Sender-readiness risk bands
Teams should treat 70+ risk pressure as a pause-and-fix band before increasing daily outbound volume.
Pre-send issue pressure
Copy quality and authentication issues deserve separate gates because one clean score can hide a weak sender foundation.
Citation blocks
Embeddable stats.
70+
pause band
A deliverability risk score above 70 should trigger copy, sender, list, and opt-out review before volume increases.
4
minimum gates
Authentication, copy quality, list hygiene, and compliance should be reviewed as separate pre-send checks.
1
primary CTA
First-touch cold emails should usually keep the next step simple so recipients do not face competing asks.
Readiness model
What to review before scaling volume.
Authentication clarity
Document SPF, DKIM, DMARC, and alignment checks before treating any cold email score as launch-ready.
Copy risk
Look for generic AI phrasing, false familiarity, urgency, too many links, weak opt-out language, and unclear CTA structure.
Audience quality
List fit matters because recipients who do not recognize the relevance of the message create faster complaint pressure.
Workflow
How to use the benchmark with Generate.
Start with the checker
Run a real draft through the deliverability checker before using the generator to create variants.
Calculate complaint budget
Translate percentage risk into allowed complaint counts for the planned send volume.
Review after rendering
QA the final merged email, not only the template shell, so placeholder leakage and personalization gaps are visible.
Practical checklist
Check SPF, DKIM, DMARC, alignment, and sender identity before campaign launch.
Use one clear CTA and avoid link-heavy first touches.
Calculate complaint-rate risk before adding daily volume.
Review the exact rendered email for merge tags, false familiarity, and missing opt-out language.
Caveats and limits
The public report uses planning bands and normalized risk pressure. It does not publish private customer inbox data.
Inbox placement depends on sender history, mailbox-provider filtering, recipient behavior, authentication, list quality, and content.
Benchmarks should be combined with live inbox testing and post-send monitoring before major volume increases.
Turn benchmarks into better outbound.
Use the generator to draft concise messages, then review sender readiness before you scale a campaign.