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Plans that scale with your sending.

Start free with a monthly allowance of spam tests, inbox placements, and email client previews across 50+ real clients and devices, AI assistant included. Paid plans raise the limits and add historical results and Autopilot scheduling. 14-day refund on every paid plan.

No account

Try the tools straight from the page.

$0 no signup

limits reset monthly

  • 3 spam tests Scores a single message against deliverability signals (SPF, DKIM, and DMARC authentication, content, blacklists, HTML) before you send, so you can fix what would trip spam filters. Learn more
  • 2 inbox placements Sends your campaign to a seed list across Gmail, Outlook, Yahoo and more, then reports where each copy actually landed: Inbox, Promotions, Spam, or Missing. Learn more
  • 1 device preview Paste your HTML or forward a real email, and we render it across 50+ real clients and devices (Gmail, Outlook, Apple Mail, iPhone, Android) in light and dark, so you catch a broken layout before subscribers do. Learn more
  • 3 email screenshots Browser-rendered screenshots of your email at desktop, tablet, and mobile widths inside your spam check results, so you spot layout breaks next to your deliverability score. Learn more
  • 1 email heatmap An AI eye-tracking heatmap that predicts where readers look first on desktop, tablet, and mobile, so you place your offer and CTA in the zones that get attention. Learn more
  • Results kept 24 hours How long your test results stay available in your account before they are removed.
  • DMARC monitoring We collect and analyze your DMARC aggregate reports, so you see who sends on your domain’s behalf and catch authentication failures early. Learn more
  • AI assistant An AI assistant that reads your results and tells you exactly what to fix, from authentication and content to the specific lines hurting deliverability.
  • Full API access Run spam tests, inbox placements, previews and DMARC report collection programmatically through the REST API and integrate the results into your own workflow. Learn more
  • MCP server access Connect Unspam to AI tools and agents through our MCP server, so you can run tests and pull results straight from your assistant or workflow. Learn more
  • Volume discounts Per-test rates drop automatically as your monthly volume grows, so the more you test, the less each test costs.
Run a test

Free

New to Unspam? Start for free.

$0 per month

21 tests / mo included

  • 5 spam tests Scores a single message against deliverability signals (SPF, DKIM, and DMARC authentication, content, blacklists, HTML) before you send, so you can fix what would trip spam filters. Learn more
  • 3 inbox placements Sends your campaign to a seed list across Gmail, Outlook, Yahoo and more, then reports where each copy actually landed: Inbox, Promotions, Spam, or Missing. Learn more
  • 3 device previews Paste your HTML or forward a real email, and we render it across 50+ real clients and devices (Gmail, Outlook, Apple Mail, iPhone, Android) in light and dark, so you catch a broken layout before subscribers do. Learn more
  • 5 email screenshots Browser-rendered screenshots of your email at desktop, tablet, and mobile widths inside your spam check results, so you spot layout breaks next to your deliverability score. Learn more
  • 5 email heatmaps An AI eye-tracking heatmap that predicts where readers look first on desktop, tablet, and mobile, so you place your offer and CTA in the zones that get attention. Learn more
  • Results kept 14 days How long your test results stay available in your account before they are removed.
  • Unlimited sender accounts Connect as many sending addresses as you send from. We never charge per inbox or per seat, so your quota is metered by tests, not senders.
  • AI assistant An AI assistant that reads your results and tells you exactly what to fix, from authentication and content to the specific lines hurting deliverability.
  • DMARC monitoring We collect and analyze your DMARC aggregate reports, so you see who sends on your domain’s behalf and catch authentication failures early. Learn more
  • Full API access Run spam tests, inbox placements, previews and DMARC report collection programmatically through the REST API and integrate the results into your own workflow. Learn more
  • MCP server access Connect Unspam to AI tools and agents through our MCP server, so you can run tests and pull results straight from your assistant or workflow. Learn more
  • Volume discounts Per-test rates drop automatically as your monthly volume grows, so the more you test, the less each test costs.
Start for free

Custom plan

Dashboard and API together. Rates drop as you grow.

  • Spam tests Scores a single message against deliverability signals (SPF, DKIM, and DMARC authentication, content, blacklists, HTML) before you send, so you can fix what would trip spam filters. Learn more
  • Inbox placements Sends your campaign to a seed list across Gmail, Outlook, Yahoo and more, then reports where each copy actually landed: Inbox, Promotions, Spam, or Missing. Learn more
  • Device previews Paste your HTML or forward a real email, and we render it across 50+ real clients and devices (Gmail, Outlook, Apple Mail, iPhone, Android) in light and dark, so you catch a broken layout before subscribers do. Learn more
  • Email screenshots Browser-rendered screenshots of your email at desktop, tablet, and mobile widths inside your spam check results, so you spot layout breaks next to your deliverability score. Learn more
  • Email heatmaps An AI eye-tracking heatmap that predicts where readers look first on desktop, tablet, and mobile, so you place your offer and CTA in the zones that get attention. Learn more
  • DMARC monitoring We collect and analyze your DMARC aggregate reports, so you see who sends on your domain’s behalf and catch authentication failures early. Learn more
  • Results kept 3 years How long your test results stay available in your account before they are removed.
  • Unlimited sender accounts Connect as many sending addresses as you send from. We never charge per inbox or per seat, so your quota is metered by tests, not senders.
  • AI assistant An AI assistant that reads your results and tells you exactly what to fix, from authentication and content to the specific lines hurting deliverability.
  • Full API access Run spam tests, inbox placements, previews and DMARC report collection programmatically through the REST API and integrate the results into your own workflow. Learn more
  • MCP server access Connect Unspam to AI tools and agents through our MCP server, so you can run tests and pull results straight from your assistant or workflow. Learn more
  • Volume discounts Per-test rates drop automatically as your monthly volume grows, so the more you test, the less each test costs.

Top up without changing your plan.

Once your subscription is running, buy extra credits for a single service straight from your dashboard. It is a one-off payment at a flat per-credit rate, it leaves the subscription untouched, and the credits never expire.

Top-up credits are available on an active Custom plan.

Meet our clients

Helping marketing teams maintain good sender reputation and email deliverability rates.

Testimonials

“Remove email from spam folder”

Unspam provides actionable insights for improvement, allowing me to make changes to my emails with confidence. This helps me ensure that our emails reach the inbox.

Luca C. Banking

“Improve email deliverability, best tool!”

The heatmap is particularly useful because it shows you precisely which parts of your email pique interest and how to enhance them to increase CTR.

Mary A. B. Internet Service Provider

“Fixed spam issues with email checker”

Just a couple of emails and I've already fixed several deliverability issues. Wow, this is awesome.

Ahmad A. Google Dev Advisory Board
4.8 / 5
Read verified reviews on G2

Common pricing questions.

Everything teams ask before choosing a plan: billing, limits, agencies, plan upgrades, and trials.

Is the free plan really free? +

Yes. The Free plan ships with a monthly allowance of spam tests, email previews, heatmaps, and inbox placements at zero cost, with the AI assistant included and no credit card required. Paid plans raise those monthly limits and add historical results.

What’s the difference between a spam test and an inbox placement test? +

A spam test scores a single message against deliverability signals (authentication, content, blacklists, HTML) before you send it. An inbox placement test sends your campaign to a seed list across Gmail, Outlook, Yahoo and other providers, then reports where each copy actually landed (Inbox, Promotions, Spam, or Missing). Most plans include both with separate monthly quotas.

Are email client previews included on the free plan? +

Yes. Every plan, including Free, comes with a monthly allowance of device previews: pixel-accurate screenshots of your email in 50+ real clients and devices (Gmail, Outlook, Apple Mail, iPhone, Android and more), each rendered in light and dark mode. The Free plan includes 3 device previews a month, Basic 10, Business 50, and Agency 250.

Can I upgrade or downgrade later? +

Any time. Upgrades take effect immediately and Stripe pro-rates the charge against the unused portion of your current cycle. Downgrades take effect at the end of the current billing cycle so you keep the higher limits until then.

Do unused tests roll over to the next month? +

Monthly allowances reset on your billing anniversary. Top-up credits are the other route: you buy them once, they sit outside the allowance, and they never expire.

What payment methods do you accept? +

All major credit and debit cards via Stripe. Agency and Custom plans can be invoiced annually, with a discount; get in touch via the support chat to set that up.

Do you offer a money-back guarantee? +

Yes, a 14-day no-questions-asked refund window on all paid plans. Reach out from the support chat and we’ll process it the same day.

Can I cancel any time? +

Yes, from the Subscription page inside your account, or by replying to any invoice email. No retention calls, no hoops.

How many sender accounts can I connect? +

Unlimited. Connect as many sending accounts as you send from on any plan, and we never charge per inbox or per seat. Your monthly quota is metered by tests, not by senders.

Are inbox placement tests billed per inbox? +

No. Each inbox placement test counts as one test against your monthly quota, no matter how many seed inboxes it reaches. A single run delivers to a seed list spanning Gmail, Outlook, Yahoo and other providers and still uses just one test, so broader provider coverage never costs extra.