InboxPlacement.io Review 2026

On our radar

Last reviewed November 2026 by Théo Pascard

InboxPlacement.io

InboxPlacement.io

Pay-per-test inbox placement and spam testing, with DMARC monitoring as an add-on

Overview

InboxPlacement.io is a small deliverability toolkit. Its core is an inbox placement test: you send a message to its seed mailboxes and it reports where it landed across Gmail, Outlook, Yahoo and AOL. Around it sit a spam test that inspects authentication and content, IP blacklist checks, an SMTP connection test and a domain DNS scan, plus DMARC report monitoring at 19 USD per domain a month. Plans are credit-based: 9.99 USD a month buys 3 placement tests and 29.99 USD buys 10. The site does not state how many seed mailboxes it uses, whether they include business Microsoft 365 or Google Workspace accounts, or which company runs the service, and we found no independent reviews.

Who it's for

  • →Senders who run a few placement checks a month and want to pay per test
  • →Teams that want spam, blacklist, SMTP and DNS checks in one inexpensive tool
  • →Small senders who want DMARC reports summarized per domain

Not for

Cold email teams whose prospects sit on Microsoft 365 or Google Workspace: the site does not say its seeds include business accounts · Buyers who need an API to schedule tests · Anyone who wants an established vendor with independent reviews and a named company behind it · Frequent testers: at about 3 USD a test, regular checks add up fast

Capabilities

  • Inbox placement test across Gmail, Outlook, Yahoo and AOL seed mailboxes
  • Spam test of authentication, content and diagnostic signals
  • IP and domain blacklist monitoring
  • Unlimited SMTP connection tests
  • Unlimited domain DNS forensic scans
  • DMARC aggregate report monitoring per domain
  • PDF reports on the Pro plan

Pricing

TierPriceCredits / moNotes
Starter$9.99/mo33 inbox placement credits a month (about 3.33 USD a test), spam test credits (number not stated), IP blacklist monitoring, unlimited SMTP and domain forensic tests, basic reporting. No free trial mentioned; cancel any time. Checked 2026-11-09.
Pro Deliverability$29.99/mo1010 inbox placement credits (3 USD a test), 10 spam test credits, 3 IP blacklist monitoring credits, unlimited SMTP and forensic tests, PDF reports, priority support. Checked 2026-11-09.
DMARC Monitoring$19/mo—Add-on, per domain per month: DMARC aggregate reports, policy recommendations, 30-day history. Checked 2026-11-09.

The honest take

Where it breaks

What a buyer needs to trust the result is missing from the site: the number of seed mailboxes, whether any are business Microsoft 365 or Google Workspace accounts, the company that runs the service, an API and any independent review. A placement test on consumer Gmail and Outlook inboxes can read clean while business Microsoft 365 tenants, where most B2B prospects sit, send the same mail to junk. At about 3 USD a test, it is also not cheap for regular checks.

The verdict

InboxPlacement.io is a low-commitment way to run an occasional placement and spam check, with DMARC monitoring on the side. For cold email to businesses, prefer a seed tool that labels professional Microsoft 365 and Google Workspace seeds and has a track record, such as MailReach. We keep it on our radar until the vendor publishes its seed list.

Alternatives

FAQ

How much does InboxPlacement.io cost?

Starter is 9.99 USD a month with 3 inbox placement tests, Pro Deliverability is 29.99 USD with 10 placement tests, 10 spam tests and 3 blacklist monitoring credits, and DMARC monitoring is an add-on at 19 USD per domain a month. That puts a placement test at about 3 to 3.33 USD. No free trial is mentioned.

Which mailbox providers does it test?

The site names Gmail, Outlook, Yahoo and AOL. It does not say how many seed mailboxes it uses or whether any are business Microsoft 365 or Google Workspace accounts, which is where most B2B prospects read their mail. For cold email to companies, a tool that labels business and consumer seeds separately tells you more.

Does InboxPlacement.io have an API?

The site does not mention one. Tests are run from the web app.

InboxPlacement.io vs MailReach: which one?

Both sell placement tests by credit. MailReach shows each seed's provider and whether it is a professional or personal account, and includes warm-up and an API; InboxPlacement.io adds DMARC monitoring and DNS, SMTP and blacklist checks. For B2B cold email, the business-seed breakdown matters more.

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