Folderly

Overview

Folderly combines AI-assisted campaign drafting with tools for checking email setup and monitoring deliverability. It is best suited to B2B teams running outbound, cold outreach, or marketing campaigns that need more than a warmup tool; mailbox-plan commitments and product-specific options call for careful plan selection.

Key features

Inbox Insights checks inbox placement and reviews sending IP and domain signals before a campaign. Its free allowance of two tests a month suits occasional checks, but teams reviewing campaigns regularly will need a paid tier, which provides 100 tests monthly. Pulse monitors placement over time and sends real-time alerts at no cost, a useful complement to those pre-send checks.

Folderly AI turns an offer, audience, and goal into a campaign draft, then directs users to relevant checks. That makes the suite more cohesive for teams that want drafting and delivery work together, while monitoring for sender reputation, authentication, and blocklists addresses ongoing delivery risks. Other tools include DMARC report review, public DNS and IP inspection, email HTML previews, and real-message testing. DMARC is a pilot and Mirror is in beta, so buyers should not treat every component as equally mature.

Folderly connects to major email providers through API and SMTP and supports custom providers. Named integrations include Amazon AWS, Sendpulse, Elastic Email, Google Workspace, SendGrid, and Microsoft Outlook. API access is available. Folderly says its security program is supported by SOC 2 Type II and ISO 27001, and it offers tailored expert support by email and phone.

Pricing

The free Inbox Insights plan costs nothing and allows 2 tests per month. Pulse costs nothing and provides real-time alerts. These are useful for limited testing and ongoing alerts, but do not provide the 100 monthly tests offered by paid Inbox Insights plans.

Inbox Insights Monthly costs $79 a month for 100 tests per month. Inbox Insights Yearly costs $799 a year for the same 100-test monthly allowance, with 15% savings. The annual option suits teams confident they will use the service throughout the year; monthly billing avoids that longer commitment.

Mailbox plans are billed yearly and carry a minimum commitment. Folderly — 1–9 mailboxes is $96 a year, billed at $96 per mailbox / month; Folderly — 10–24 mailboxes is $72 a year, billed at $72 per mailbox / month; and Folderly — 25–99 mailboxes is $56 a year, billed at $56 per mailbox / month. The lower per-mailbox rate at larger mailbox counts may suit teams scaling delivery operations, but the minimum commitment makes these plans less suitable for buyers who need a short-term or flexible arrangement. Folderly — 100+ mailboxes has custom pricing per mailbox / month and a minimum commitment.

Folderly says product availability, access, and plans vary by product, so the Inbox Insights and mailbox plans should not be assumed to unlock the same tools. Check the product page and requirements for the specific capability you need before choosing.

Platforms

Folderly is available on web and through an API, making it a fit for teams working in a browser or connecting deliverability workflows programmatically.

Who it's for

Folderly is a strong fit for B2B teams managing outbound or marketing email across multiple mailboxes, especially those who value pre-send placement checks alongside ongoing monitoring. It is less compelling for someone seeking only a basic warmup tool, or for a buyer who wants one simple plan covering every product.

Pros and cons

• Pros: Free Pulse alerts provide ongoing placement monitoring without a monthly charge.
• Pros: Campaign drafting, pre-send IP and domain checks, and reputation, authentication, and blocklist monitoring bring several parts of delivery work together.
• Pros: API and SMTP connections, custom-provider support, and named integrations cover a range of email setups.
• Cons: Inbox Insights Free is capped at two monthly tests, limiting its value for frequent campaign reviews.
• Cons: Mailbox plans require a minimum commitment and are billed yearly, which reduces flexibility.
• Cons: Product availability and plans vary, and DMARC is a pilot while Mirror is in beta.

Alternatives

For a broader comparison of tools in these categories, see Email Warmup Software and Email Deliverability Software.

Warmerly is worth considering if a freemium option with a free trial and campaign email, lead, email-check, and lookup allowances better matches your needs. SendScale Email Warmup may suit buyers looking for pre-warmed inboxes, warmup tools, conversational guidance, and campaign access on its free plan. Swokei Email Warmup offers a no-card free start with credits and one campaign, but sending, follow-ups, warmup, and reply tracking require a plan.

TrulyInbox is a lighter free option for one account with 10 warmup emails per day and basic deliverability tracking. WarmEnvelopes may appeal to web users who want a free allowance of four emails per day per domain across up to 10 domains. WarmupHero is a free choice for users of SmartReach.io. darkzwarmer is a free alternative for buyers seeking a self-hosted option across Linux, macOS, and Windows. Warmforge is another paid option, with an Email Warm Up plan that includes a free slot and one free placement test per month.

Verdict

Choose Folderly if your B2B team wants campaign drafting, delivery checks, and ongoing monitoring in one suite, and can match its product-specific plans and annual mailbox commitments to your needs. Look elsewhere if you need a flexible, clearly unified plan or a warmup-only tool; the two-test free Inbox Insights cap is also too limited for regular pre-send checks.