Tool profile
Folderly: cost, fit and limits
Folderly is an email deliverability platform made by Folderly Inc. in the United States that tests inbox placement, checks DNS and authentication, monitors spam placement and offers an AI drafting tool for outbound campaigns, with a free testing tier.
What to know first
Folderly is a set of separate products under one name. Inbox Insights runs placement tests and starts free at 2 tests a month. Pulse sends spam placement alerts at no charge, and the suite is priced per mailbox on a yearly plan. Lens, Flash, Mirror and Folderly AI show no prices. The homepage lists SOC 2 Type II and ISO 27001, while the DMARC product has its own privacy policy.
Folderly at a glance
| Maker | Folderly Inc., United States |
|---|---|
| Free plan | Yes |
| Entry price | $0 per month |
| API access | No |
| Category | Best AI Email Deliverability Tools in 2026, rank 11 of 11 |
| Website | folderly.com |
Who Folderly is best for
Founders testing before a cold campaign
Inbox Insights is free for 2 tests a month and checks placement, IPs and DNS records, so a new domain can be checked before any volume goes out.
Agencies running many mailboxes
The suite is priced per mailbox per month on a yearly plan, which makes cost scale with the number of sending accounts instead of a flat tier.
Teams that read DMARC reports
Folderly DMARC, still a pilot, brings aggregate reports into a domain and source view, and its privacy policy says report data is not used to train models.
Folderly plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Inbox Insights Free | $0 per month | 2 tests per month for checking email placement, IPs and DNS records before a campaign. |
| Inbox Insights Monthly | $79 per month | 100 tests per month, billed monthly, for checking email placement, IPs and DNS records before campaigns. |
| Inbox Insights Yearly | $799 | 100 tests per month. The pricing page labels it Save 15% and shows no period suffix after the price. |
| Folderly yearly | $96 per mailbox per month | Per-mailbox yearly plan for the deliverability suite, labeled Save 20%. The page lists no mailbox cap or test limit. |
| Pulse Free | $0 per month | Spam placement monitoring with alerts through email, Slack, SMS and other channels. No limits are listed. |
Checked November 2026.
What Folderly does
- Inbox Insights
- Checks email placement, IPs and DNS records before a campaign goes out, with test volume set by the plan, from 2 a month on the free tier to 100 on paid ones.
- Pulse
- Monitors inbox placement over time and sends alerts when spam placement changes, through email, Slack, SMS and other channels, so a sudden drop reaches the team quickly.
- Folderly Lens
- Inspects DNS, authentication, reverse DNS and blocklist signals for a sending domain, which helps when the cause of poor placement is a configuration fault rather than content.
- Folderly Flash
- Sends a test from the actual tool and domain so authentication and content can be reviewed on the same path a real campaign would take.
- Folderly DMARC (pilot)
- Brings aggregate DMARC reports into a view organized by domain and source. The homepage marks it as a pilot, so expect the feature set to change.
- Folderly AI
- Turns an offer, an audience and a goal into a campaign draft, linked to an AI email generator. It writes outbound copy and is not described as a deliverability repair tool.
How Folderly handles your data
The DMARC privacy policy says Folderly does not use report data or forensic content to train machine learning models. It also says AI insights send aggregate figures and busiest-source names to Anthropic, and that the policy does not address whether Anthropic may use that data for training. Report data is kept while a workspace is active, shown for the last 30 days in the product, and stored in the United States on AWS us-west-1. The homepage states SOC 2 Type II and ISO 27001. The policy for the main deliverability product was not reachable.
Where Folderly falls short in practice
- Free tier is a sampler. Two tests a month is enough to try the method on a new domain, not to monitor a live program. Moving to 100 tests costs $79 monthly or $799 yearly, a large step for a small sender.
- Several products have no price. Folderly AI, Lens, Mirror and Flash show no price on the pages read, so the full cost of the suite depends on a demo. The per-mailbox plan lists no mailbox cap or test limit either.
- Pilot and beta features. Folderly DMARC is labeled a pilot and Folderly Mirror a beta. A team that needs a stable reporting workflow may prefer to wait, or to use a dedicated DMARC service alongside the testing tools.
Alternatives to Folderly
Folderly: common questions
What does Folderly cost?
Inbox Insights is $0 for 2 tests a month, $79 monthly for 100 tests, or $799 yearly. The deliverability suite is $96 per mailbox per month on a yearly plan, and Pulse alerts are $0. Folderly AI, Lens, Mirror and Flash show no price, so ask for a written quote covering all the products you plan to use.
Does Folderly use my data to train AI?
The DMARC privacy policy says report data and forensic content are not used to train machine learning models. It adds that AI insights send aggregate figures to Anthropic and does not address Anthropic training. The policy for the main deliverability product was not reachable, so ask for it before connecting mailboxes.
Where does Folderly store DMARC data?
The DMARC privacy policy says report data is stored in the United States on AWS us-west-1. Sub-processors such as Vercel and Railway are named without locations. Data is kept while the workspace is active, and the product shows only the last 30 days. European senders should ask about a transfer mechanism.
Which security certifications does Folderly state?
The homepage says Folderly maintains a security program supported by SOC 2 Type II and ISO 27001. The pages read did not include the reports or their scope, so ask for the current documents, and check whether they cover the DMARC product and the AI features as well as the core deliverability suite.
What does Folderly AI actually do?
Folderly AI turns an offer, an audience and a goal into a campaign draft and links to an AI email generator. The vendor describes it as a drafting tool for outbound campaigns. The pages read do not describe AI that changes placement or repairs sender reputation, so judge deliverability by the testing products.