Review

FolderlyChecked by Vetteroo review

Sales teams with spam problems.

We check it out so you don’t have to.

Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend things we believe are useful. Read our full disclosure.

What it is
Email deliverability fixes, warm-up and inbox placement tests
Best for
Teams with serious deliverability problems
Price
$96/mailbox/month billed yearly, checked October 30, 2026
Prices checked
October 30, 2026

We researched Folderly's official pricing, terms, product pages, help pages and outside reviews. We haven't used Folderly ourselves, so this is a research-based review, not a hands-on test.

Who it’s best for

  • Sales teams with spam problems.
  • Agencies.
  • Companies with many domains.

Who should skip it

  • Probably not the best fit on a small budget.

How it works day to day

This part draws on Folderly’s own product pages, help center and documentation, read October 30, 2026 (listed under Sources). We haven’t used Folderly ourselves.

Connect a mailbox, run a placement test, and follow the fixes it suggests while warm-up runs.

Key features in use

  • Inbox placement tests
  • Warm-up
  • DNS checks
  • Alerts
  • Reports

Setup and learning curve

An hour.

Integrations

None.

Support

Chat and email.

Real-world use cases

  • Cold email
  • Domain recovery
  • Agencies
  • Sales teams

What it costs

Prices checked October 30, 2026, from Folderly’s own pricing page unless noted. Prices change often, so check the official page before you buy.

  • $96 per mailbox per month billed yearly; Inbox Insights tests free (2 tests), $79/month (100 tests) or $799/year; Pulse alerts free (checked October 30, 2026).
  • Its terms say subscriptions are non-cancelable and service fees paid are non-refundable.

What we like

  • Good Trustpilot score.
  • Free placement tests and alerts.
  • Hands-on deliverability help.
  • Works with Google and Microsoft.

What to watch for

  • Trustpilot showed 4.5 out of 5 as of October 30, 2026, 17 reviews.
  • Expensive per mailbox.
  • Fees are non-refundable.
  • Yearly billing for the main plan.

The fine print

  • Start with the free tests before you commit.
  • Subscriptions are non-cancelable once bought.

The main alternative: Instantly Checked by Vetteroo

Instantly is a cold email platform with warm-up included.

What it costs: $47/mo (Growth), checked October 26, 2026

Read our full Instantly review

Pick FolderlyChecked by Vetteroo if you…

  • want expert deliverability fixes.
  • want inbox tests.
  • have domain problems.

Pick InstantlyChecked by Vetteroo if you…

  • want sending plus warm-up.
  • want a lower price.
  • want monthly billing.

Our take

Folderly is well reviewed but pricey; try the free tests first.

Side by side

CompanyBest forStarting price
Folderly Checked by VetterooTeams with serious deliverability problems$96/mailbox/month billed yearly, checked October 30, 2026
Instantly Checked by VetterooHigh-volume sending across many inboxes$47/mo (Growth), checked October 26, 2026

From our company records. Check the official pages for current prices.

What we checked

  • Folderly's pricing, product pages and terms, read October 30, 2026
  • Folderly's Trustpilot profile, read October 30, 2026
  • Instantly's details: from our published review and its official pages, October 30, 2026
  • The other official and outside pages listed under Sources (links checked October 30, 2026)

Sources

Visit Folderly’s official site

How we review

We read the company's own terms, test the sign-up or booking steps where we can, and compare it with alternatives. A commission never changes what we write. Read our disclosure.

Disclosure: Some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We only recommend things we believe are useful. Read our full disclosure.