
Free / Open-sourceFree email spam checker and deliverability test with AI insights
Free / Open-sourceFree email spam checker and deliverability test with AI insights

See where your email actually lands, and why
Estimated monthly website visits
Similarweb estimates for this domain, not active users. Only available observation months are shown; collection date is separate from the traffic period.
Collected Nov 11, 2026

This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-11, Kasplo Email Intelligence (kasplo.com) is an AI platform indexed under AI Email Marketing generating 3.53K monthly visits with a month-over-month traffic delta of -1.38K (-28.1%). Its primary geographic market is India (100% traffic share), and it operates on a Contact for Pricing pricing model. Top competing alternatives by monthly volume include Unspam AI (79.14K visits/mo), MailTester.Ninja (452.79K visits/mo), MailTester.AI (5.4K visits/mo).
Caught a bad SPF record before our Black Friday blast.
Great visibility into spam folder placement.
Pricing page requires contacting sales.
Solid DMARC and DKIM checks.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
A seed-based inbox tracker that estimates whether campaigns land in the inbox or the spam folder, so deliverability problems show up before revenue does.
Automated checks for SPF, DKIM and DMARC setup alongside unsubscribe handling and sending-practice compliance, with gaps flagged for repair.
Ranked guidance on which placement signals are hurting performance most, so engineering and CRM teams know what to fix first.
Pairs with Kasplo's pre-send verification to classify valid, risky and invalid addresses and keep avoidable bounces off the list.
Deliverability data sits next to the campaigns, journeys and revenue analytics in the same Kasplo account, so placement issues can be traced back to specific sends.
Kasplo Email Intelligence is the visibility layer of Kasplo's email offering. Where the marketing cloud builds campaigns and journeys and the Email API handles transactional sending, Email Intelligence answers a narrower but harder question: did the message actually reach the inbox, and if not, why? It combines an inbox tracker that estimates placement against the spam folder with a compliance tracker covering SPF, DKIM, DMARC, unsubscribe handling and general sending practices.
That pairing matters because most deliverability failures are not caused by the copy. They come from misconfigured authentication, stale suppression lists, complaint spikes or reputation drift. Email Intelligence surfaces those signals in plain language and ranks them, so a CRM owner or a developer can see which issue is costing the most inbox placement this week rather than guessing.
The module sits alongside Email Verification, which classifies addresses as valid, risky or invalid before a send using syntax, domain and mailbox checks. Used together, they cover both sides of list quality: who you are sending to, and where the message lands once it goes out. Kasplo reports customer outcomes such as a jump from 38.14% to 99.80% inbox performance at one food-delivery brand, though results naturally depend on list health and sending volume.
When a campaign's open rate drops without an obvious cause, Email Intelligence shows whether messages are landing in spam and which authentication or sending-practice gap is driving it.
Before scaling to a new sending domain or dedicated IP, run authentication and compliance checks so SPF, DKIM and DMARC are correct from day one.
Pair placement reporting with pre-send address classification to keep invalid and risky contacts off high-volume sends.
Use inbox placement benchmarks and campaign attribution side by side to show stakeholders what email is really delivering.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | Kasplo Email Intelligence | 3.53K | -28.1% | 39% direct | Contact for Pricing | Current |
| 1 | Unspam AI | 79.14K | -13.7% | 47% direct | Freemium | vs Unspam AI |
| 2 | MailTester.Ninja | 452.79K | -10% | 58% direct | Freemium | vs MailTester.Ninja |
| 3 | MailTester.AI | 5.4K | -16.7% | 40% direct | Freemium | vs MailTester.AI |
| 4 | Mailchimp | 10.07M | +1.1% | 57% direct | Freemium | vs Mailchimp |
| 5 | mailX by mailwarm | 7.45K | 0% | 40% direct | Free | vs mailX by mailwarm |
| 6 | Klaviyo | 6.67M | +6.1% | 66% direct | Paid | vs Klaviyo |

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