Comparison
Warmerly vs Folderly
Folderly is a B2B email deliverability platform that bundles mailbox engagement and reputation maintenance with inbox placement testing, spam word analysis, and content-level audits. It does more than warmup, but that breadth comes with a higher price and more complexity than most cold email senders need.
The cheaper alternative with published prices: warmup included on every mailbox, daily SPF, DKIM and DMARC checks, and campaigns from the same mailboxes.
Deliverability suite with placement testing, spam triggers, and content analysis.
The short version
- Folderly bundles ongoing mailbox engagement and reputation maintenance with content analysis, spam trigger reports and a template library. It describes itself as different from a standard warm-up service. Warmerly focuses purely on warmup and sender reputation.
- Warmerly includes its mailboxes and their warmup in one flat price. Folderly's core plan is $96 per mailbox per month on yearly billing for 1 to 9 mailboxes, dropping to $72 at 10 to 24 and $56 at 25 to 99, so its bill grows with every mailbox you add.
- If your core problem is sender reputation and inbox placement, Warmerly is more focused and significantly cheaper.
- If you need content-level deliverability help alongside warmup (spam word checks, template audits, content scoring) Folderly does more.
Feature by feature
| Warmerly | Folderly | |
|---|---|---|
| Starting price (per month) | $19 | $96 per mailbox for 1 to 9 mailboxes (billed yearly) |
| Mailboxes on starting plan | 5 | Priced per mailbox |
| Email warmup | Yes | Mailbox engagement and reputation maintenance (Folderly says it differs from standard warm-up) |
| Spam-folder rescue interval | Every 10 minutes | Not stated on its public pages |
| Reply with quoted history | Yes | Replies to messages (quoted history not stated) |
| Inbox placement seeds | Placement test, limited accuracy (no dedicated Gmail/Outlook seed list yet) | Yes (placement testing is a core feature) |
| Auth monitoring (SPF/DKIM/DMARC) | Daily, with remediation copy | Included in suite |
| Spam word / content analysis | Not included | Yes |
| Email template / content audit | Not included | Yes |
| Reputation drop alerts | Email + webhook + Slack | Email, Slack, SMS and others (Pulse) |
| API access | Agency plan | Not stated on its public pages |
| USD/GBP billing & EU data residency | Yes | Not stated; its privacy policy says data may be transferred outside the EEA |
| Free plan / trial | Free plan (no card), or a 7-day trial | Core product by demo request; Inbox Insights has 2 free tests a month |
| Try before you pay | Free plan (no card) + 7-day trial; no refunds after the first charge | Demo request for the core product |
Our verdict
Folderly is a deliverability suite rather than a warmup tool. If content-level analysis (spam word checking, template audits, placement scoring) is central to your workflow, it may justify the cost. But if your primary need is warming mailboxes and building sender reputation, Warmerly is more focused, dramatically cheaper, and simpler to run at scale.
- You need warmup without paying for content audit features you don't use
- You manage 3 or more mailboxes and want one predictable flat monthly cost
- You already use a separate spam testing tool (Mail-Tester, GlockApps, MxToolbox)
- You want USD or GBP billing, or need EU data residency
- You want fast setup with no complexity overhead
- You need content-level deliverability help: spam word analysis, email content scoring, template audits
- You want warmup and a full deliverability audit suite in a single platform
- Budget is not a primary constraint and you want content analysis and placement testing in one suite
Questions
Is Warmerly a direct replacement for Folderly?
For the warmup layer, yes. Warmerly connects to Gmail and Microsoft mailboxes, runs active warmup sequences, monitors SPF/DKIM/DMARC records daily, and runs an inbox placement test, whose accuracy is limited until it has dedicated seed mailboxes. It does not include Folderly's content analysis, spam word checker, or template audit tools. If you rely heavily on those features, you would need to pair Warmerly with a standalone content testing tool.
Does Warmerly check if my email content triggers spam filters?
Not directly. Warmerly focuses on sender reputation and mailbox health, the warmup layer. For email content analysis, tools like GlockApps, Mail-Tester, or Folderly itself handle that side. Good deliverability comes from both: a healthy sender reputation and clean, non-spammy email content.
How much cheaper is Warmerly than Folderly?
Warmerly starts at $19 per month for 5 mailboxes, or $49 for 25. Folderly's core plan is $96 per mailbox per month billed yearly for 1 to 9 mailboxes, so 5 mailboxes come to $480 a month against Warmerly's $19. Folderly's price buys content and placement analysis Warmerly does not have; for warmup alone, the gap is large.
How much does Folderly cost?
Folderly's core deliverability plan is $96 per mailbox per month on yearly billing for 1 to 9 mailboxes ($72 for 10 to 24 and $56 for 25 to 99); its pricing page says yearly saves 20%. Inbox placement tests are a separate product, Inbox Insights: 2 free tests a month, or $79 a month (or $799 a year) for 100. Its Pulse placement alerts are listed as free. Read from folderly.com on October 15, 2026.
How do I switch from Folderly to Warmerly?
Disconnect your mailboxes from Folderly, then connect them to Warmerly with the mailbox connect flow. Pick a ramp curve that matches your current send volume and warmup stage, and Warmerly picks up from there. No DNS changes needed. Around 2 minutes per mailbox.
More comparisons
Tired of paying Folderly prices?
Connect a mailbox to Warmerly in 60 seconds. Free plan, no card required. Paid plans start with a 7-day trial, first charge on day 8, cancel any time before then. We will warm right alongside whatever you use now, so you can A/B without commitment.
