The email deliverability platform for GTM teams
Folderly diagnoses why your emails fail and fixes the root causes, so the pipeline you forecast is the pipeline you get.
How our email deliverability platform accelerated performance for customers across our case studies
You cannot forecast what you cannot see
Every GTM plan assumes a conversion rate on emails sent. Almost none of them account for the share that never arrived. When placement drops, the numbers move exactly like a market problem or a messaging problem, so teams rewrite sequences and hire reps to fix something neither will touch.
The signal is slow and misleading. Reply rates drift down over weeks, no bounce fires, no error appears, and by the time it is obvious enough to investigate you have lost a quarter of pipeline and spent the budget you would have used to fix it.
Warm-up gets sold as the answer. It moves one signal, early, and its effect fades exactly when your campaigns start mattering to revenue.
How Folderly protects your pipeline
Diagnose
We audit every layer that decides whether your email is delivered and tell you what share is actually reaching the inbox today. For most teams this is the first honest number they have had on a channel they already forecast against.
Fix
Your specialist works the root causes in priority order: authentication, damaged reputation, sending patterns, and the list quality that keeps re-triggering filters. Hands-on remediation, not a report your RevOps lead has to action between other jobs.
Monitor
Seed-based placement testing runs continuously, so a drop surfaces the day it starts rather than as a missed number at the end of the quarter.
Compound
Because reputation strengthens with consistent, well-managed sending, the channel gets more efficient as you invest in it. Your cost per meeting falls instead of quietly climbing.
What the platform covers
Authentication and DNS
SPF, DKIM and DMARC configured correctly and kept correct as domains, tools and vendors change. Misconfiguration here is the most common cause of sudden, total delivery failure.
Reputation monitoring and repair
Domain and IP reputation tracked across every major provider, with remediation the moment a signal degrades, so a bad month does not become a bad quarter.
Inbox placement testing
Seed-based testing gives you the number your forecast actually depends on: what share of sends reach the inbox, provider by provider, updated continuously.
Email validation
Validation that checks ESP-specific filters and email protection tools, not just syntax. Every invalid address you send to costs reputation and wastes rep time.
Blacklist monitoring
Continuous monitoring across the blacklists that affect B2B sending, so a listing is caught before it shows up in your numbers.
A named deliverability specialist
One person accountable for the outcome, so this does not become another thing your RevOps lead owns on top of everything else.
Who this is for
GTM, revenue and RevOps leaders
You own the number, outbound is a material input to it, and nobody in the business can currently tell you how much of it is reaching the inbox.
Teams running outbound at real volume
Multiple reps, ten or more mailboxes, and a plan to increase sending this year rather than hold it flat.
The forecast missed and the reason is not obvious
Sequences were rewritten, reps were added, targeting was changed, and reply rates still went the wrong way.
Folderly case studies
Discover Folderly customers’ success and see how best-practice infrastructure can unlock new levels of email marketing performance.
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(Up to 50 employees)

(Over 250 employees)
(50 to 250 employees)
(50 to 250 employees)
(Up to 50 employees)
(Over 250 employees)
How this compares to setting it up once
Most tools help you get set up. What matters is whether anyone is still watching when your number depends on it.
| What changes | The usual approach | With Folderly |
|---|---|---|
| Getting set up | You configure it once and hope it holds | We set it up, then keep it right as your stack changes |
| What you can report | Emails sent, and a reply rate | What share actually reached the inbox, provider by provider |
| Forecasting the channel | You assume everything arrives | You forecast on a number you can defend |
| When something breaks | You find out at the end of the quarter | You hear from us the day it starts slipping |
| Getting it fixed | RevOps adds it to an already full list | Your specialist fixes it and owns the result |
Supported ESPs
Folderly integrates via API and SMTP with major email service providers and supports custom providers too
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Folderly works with any sending architecture
Don't see your ESP on the list? Request a demo and we'll show you how Folderly can work with the tools you already use.
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Guides
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Data and proof
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