◢ A SOLO TIER OF FOLDERLY · BELKINS COMPANY

The Folderly stack —
repackaged for one inbox.

Folderly's full deliverability stack — DNS audit + spam-trap monitoring + reputation tracking + warm-up — repackaged for solo founders, indie consultants, and one-person agencies. Same tech the team tier uses, capped at one mailbox, at the price of one Linear seat.

Preorder Solo — $39/mo Run a free deliverability check ↓
14-day refund · existing Folderly customer? Get migration credit · vladislav@belkins.io
V
Built by Vlad Podolyako — I run Folderly (B2B email deliverability) and Belkins (B2B lead generation, 200+ team). One of 10 portfolio bets shipping in May 2026. Refund any time in 14 days, replied personally.
Free preview · real DNS audit

Audit any domain's
deliverability in 3 seconds.

This is a real DNS check — not a demo. Type any domain (yours, a competitor's, a prospect's) and we'll pull live SPF, DKIM, DMARC, MX records, and scan 7 RBLs. No signup, no email gate.

● LIVE · runs in your browser · no signup · 5 checks + 7 RBLs
◢ Real DNS audit · v1
Try stripe.com, your own domain, or any prospect's. Real records — not a simulation.
Type a domain and click Run audit — real DNS lookup, no signup.
Folderly Solo runs this every week, alerts when records drift, and adds seed-network inbox placement — the part you can't get from DNS alone (Gmail/Outlook/Yahoo Promotions vs Inbox vs Spam, per ISP).
Why bother

Three numbers that decide it.

~17%
Cold emails landing in spam by month 3
Industry baseline for unwarmed solo-founder mailboxes. Folderly's monitoring + warm-up cuts this to under 4% within 30 days.
$39
Solo tier vs. $400 team tier
Same tech, one mailbox cap. We'd rather have 100 solo customers at $39 than turn them away because the team tier's too big.
12
ISP feedback loops monitored
Gmail, Outlook, Yahoo, Apple iCloud, Yandex, GMX + 6 corporate gateways. Drift alerts within 24h.
Solo vs. Team tier

Same engine. Different cap.

Capability
Team ($400+)
Solo ($39)
SPF / DKIM / DMARC audit
✓
✓
Spam-trap monitoring
✓
✓
Sender reputation tracking
✓
✓
Mailbox warm-up
✓
✓
ISP feedback loops
12+
12
Weekly health report
✓
✓
Mailboxes covered
25-200
1
Customer success calls
Quarterly QBRs
Async only
Support
Slack channel
Email · 24h
Price
From $400/mo
$39/mo
Pricing

One tier. For one mailbox.

Folderly Solo · $39/mo
$39/month
For solo founders, indie consultants, one-person agencies
  • 1 mailbox monitored
  • Full Folderly tech stack
  • Weekly health report
  • Spam-trap + reputation alerts
  • Warm-up + DNS audit
  • 14-day refund
Preorder · $39/mo →
Who's in
FAQ

The honest answers.

What's the relationship to Folderly?

Folderly Solo is a Folderly product line — same engineering team, same tech stack, scoped down to a 1-mailbox tier. Belkins (Folderly's parent company) operates the brand.

Can I upgrade to Team later?

Yes. Migration credit applies — $39/mo paid against future Team setup. No data loss; same backend.

What if I have multiple mailboxes?

Solo caps at 1 mailbox. For 2-5 mailboxes, the Team tier ($400) is the right move. Below 25 mailboxes, you're underutilizing Team though — Solo + add-on mailboxes ($15 each) coming Q3 2026.

Do you do email warm-up via spam farms?

No. Real-recipient warm-up via the Folderly partner network — your mailbox gradually establishes reputation by sending to genuine engaged inboxes that reply + click. No bots.

Refund policy?

14-day full refund. Reply to vladislav@belkins.io. Cancel any time via Stripe.

Ten bets shipping in parallel.
This one ships on existing infra.

$39/month, 14-day refund, beta access in May. Built on Folderly's proven deliverability stack — repackaged for the solo operator who can't afford the team tier.