Folderly vs Unspam.email
Folderly
folderly.com
Unspam.email
unspam.emailSide by side
| Figure | Folderly | Unspam.email |
|---|---|---|
| Price from | $4.67/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 12 | 7 |
| Spec score · Email Deliverability Software | 9.0 (#3) | 8.5 (#7) |
| API authentication | The API uses server-side Bearer API keys that are created and rotated from the account area. | REST requests use bearer tokens created per integration; tokens can be revoked individually and invalid or unauthorized calls return 401 or 403. |
| Headquarters | 8 The Green STE 300, Dover, DE 19901, United States | The company lists 167 Madison Avenue, Suite 205, New York, New York 10016, United States, and a Barcelona office. |
| Integrations | Folderly says it connects to major email service providers through API and SMTP and supports custom providers. | The API is designed to receive real messages from SES, Postmark, SendGrid, Mailgun or a customer’s SMTP system. |
| Intended users | Folderly presents its suite for B2B teams and highlights outbound campaigns, cold outreach, and marketing use cases. | The company describes the platform as serving marketers, founders, agencies, and product teams. |
| Purpose | Folderly describes its suite as AI and email deliverability tools for B2B teams that help draft campaigns, check sending setups, and monitor delivery. | Unspam is an email deliverability platform that checks spam signals, sender authentication, blacklists, previews, heatmaps, and inbox placement. |
| Rating on Capterra | 4.8 out of 5 from 44 reviews | 5.0 out of 5 from 1 review. |
| Rating on G2 | 4.8 out of 5 from 103 reviews | 4.8 out of 5 from 32 reviews. |
| Security | Folderly says its security program is supported by SOC 2 Type II and ISO 27001. | The privacy policy says stored data is kept on services and providers certified to ISO/IEC 27001:2013, PCI DSS, SOC 1 Type II, and SOC 2 Type II or higher. |
| Support | The site offers tailored expert support and lists [email protected] and +1 302 202 4044 as contact details. | The company lists support chat and [email protected] for support or product inquiries. |
| What it does | Folderly is a B2B email-deliverability suite for diagnosing, fixing and monitoring inbox placement. | Unspam.email is a deliverability platform combining spam tests, authentication and blacklist checks, previews, heatmaps and inbox-placement testing. |
Plans
Folderly
- Inbox Insights FreeFree
- PulseFree
- Folderly — 25–99 mailboxes$56 a year
- Folderly 25–99 mailboxes (yearly)$56 a month
- Folderly — 10–24 mailboxes$72 a year
- Folderly 10–24 mailboxes (yearly)$72 a month
- Inbox Insights Monthly$79 a month
- Folderly — 1–9 mailboxes$96 a year
- Folderly 1–9 mailboxes (yearly)$96 a month
- Inbox Insights Yearly$799 a year
Unspam.email
- FreeFree
- No accountFree
- Custom plan$5 a month
- Basic$9 a month
- Business$19 a month
- Agency$29 a month
- White LabelPriced on request
In their own words
Folderly
Folderly is a suite of AI and email deliverability tools for B2B teams. It combines campaign drafting with checks and monitoring intended to help assess email placement and sender reputation. Inbox Insights reviews inbox placement along with sending IP and domain signals before a campaign; its free plan includes 2 tests per month. Pulse tracks placement over time, and real-time alerts are available for free. Folderly AI turns an offer, audience, and goal into a campaign draft and directs users to relevant checks. Other tools cover DMARC reports, public DNS and IP inspection, email HTML previews, and real-message testing; DMARC is a pilot and Mirror is in beta. Folderly says it connects to email service providers through API and SMTP, supports custom providers, and names Amazon AWS, Sendpulse, Elastic Email, Google Workspace, SendGrid, and Microsoft Outlook. Product availability, access, and plans vary by product. Listed options include Inbox Insights Monthly at $79 a month for 100 tests and Inbox Insights Yearly at $799 a year for 100 tests per month. Folderly mailbox plans list a minimum commitment and per-mailbox monthly amounts, billed yearly.
Unspam.email
Unspam.email is an email deliverability platform for examining spam signals, sender authentication, blacklists, previews, and inbox placement. Spam tests assess authentication, sender reputation, blacklists, and message content, then show which checks affected the score. Inbox placement tests send a campaign to seed mailboxes at Gmail, Outlook, Yahoo, and other providers and report where it landed. Email previews cover rendering across more than 50 real clients and devices in light and dark modes. Scheduled tests can track placement and spam scores and send alerts by email when results decline. Its API has 39 endpoints across seven areas and can test mail sent through SES, Postmark, SendGrid, Mailgun, or a sender’s own SMTP setup; an MCP server lets compatible AI clients run tests and retrieve results. The free plan includes 21 tests per month, unlimited sender accounts, and 14-day data retention, but excludes DMARC monitoring and full API access. Custom costs $5 a month, with a $5 monthly minimum and pay-per-test rates.