Warming up
Folderly is a B2B email deliverability platform that bundles email warmup 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, specialised alternative. Warmup-only, warmup included on every mailbox, daily auth checks, 5-provider placement insight.
Full deliverability suite with warmup, spam testing, and content analysis.
| Warmerly | Folderly | |
|---|---|---|
| Starting price (per month) | $19 | ~$120+ (verify at folderly.com) |
| Mailboxes on starting plan | 5 | Limited by plan (check folderly.com) |
| Email warmup | Yes | Yes |
| Spam-folder rescue interval | Every 10 minutes | Included (check docs for interval) |
| Reply with quoted history | Yes | Yes |
| Inbox placement seeds | 5 providers | 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 — core differentiator |
| Email template / content audit | Not included | Yes |
| Reputation drop alerts | Email + webhook + Slack | Email and dashboard |
| API access | Agency plan | Check current docs |
| USD/GBP billing & EU data residency | Yes | No |
| Free trial | 7 days, no charge until day 8 | Trial available (check folderly.com) |
| Refund window | 30 days | Check their terms |
Folderly is a deliverability suite, not just 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.
For the warmup layer, yes. Warmerly connects to Gmail and Microsoft mailboxes via OAuth, runs active warmup sequences, monitors SPF/DKIM/DMARC records daily, and tracks inbox placement across 5 providers. 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.
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.
Warmerly starts at $19 per month for 5 mailboxes, or $49 for 25. Folderly's pricing is significantly higher — verify the current rate at folderly.com. For warmup-only use cases, the cost difference is substantial.
Disconnect your mailboxes from Folderly, then connect them to Warmerly via the Google or Microsoft OAuth 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.
Connect a mailbox to Warmerly in 60 seconds. 7-day free trial, card required, first charge on day 8. We will warm right alongside whatever you use now, so you can A/B without commitment.