Know your score before you hit send
SPF, DKIM and DMARC, blacklists, content and HTML, checked against one real message, with an AI assistant that tells you exactly what to fix.
$0.18 $0.12
per test with BLACKFRIDAY35
Starts Saturday, November 21
From Saturday, November 21 to Tuesday, December 1, 35% off your first payment on the Custom plan, monthly or annual.
Until then, HIGHSEASON20 takes 20% off your first month, through Friday, November 20.
+5% From Saturday, November 21, win our 8-email spam filter game and get 40% off instead of 35%Checks on the list you send to, the domain you send from and the message itself, from the spam score to the inbox to the screen. Find what would cost you the sale while there is still time to fix it.
SPF, DKIM and DMARC, blacklists, content and HTML, checked against one real message, with an AI assistant that tells you exactly what to fix.
$0.18 $0.12
per test with BLACKFRIDAY35
Your campaign goes to 10 seed mailboxes at 7 major providers, and each one reports Inbox, Promotions, Spam or Missing, so you find out before your list does.
$0.50 $0.33
per test with BLACKFRIDAY35
Your offer rendered in 50+ real email clients, Gmail, Outlook, Apple Mail, iPhone and Android among them, each in light and dark mode.
$0.75 $0.49
per test with BLACKFRIDAY35
An AI eye-tracking heatmap shows where subscribers are likely to look, so the discount and the button sit where the attention goes.
$0.30 $0.20
per test with BLACKFRIDAY35
Upload your list and every address comes back deliverable, risky, undeliverable or unknown, with the reason. Bounces cost the sender reputation your sale runs on, and unknown results are never charged.
$6.40 $4.16
per 1,000 addresses with BLACKFRIDAY35
The reports mailbox providers send about your domain, turned into a list of every source that sends as you, with its status and the share of its mail that passes DMARC. Open a source to see the SPF and DKIM results behind its failing mail. A forgotten tool or a spoofer shows up before it costs you the inbox.
$6.00 $3.90
per domain a month with BLACKFRIDAY35, first domain free
Type the subject you plan to send, or try one of ours. Trigger words light up as you type, and the spam risk score follows.
A subject is one line. A full Unspam spam test reads the whole message: authentication, blacklists, content and HTML.
It is 9:00 on Black Friday and 8 emails are waiting. Read the sender, the subject and the authentication results, then send each one to the inbox or to spam. Every answer comes with the reason a real filter would give.
From November 21, 2026, sorting at least 7 of 8 correctly unlocks 40% off your first payment, instead of the sale’s 35%.
spf=passdkim=passdmarc=pass“Essential insights that maximize campaign success”
Instead of just showing a spam score, it accurately shows where my marketing emails get filtered, their placement (inbox, spam, promotions), and specific fixes for subject lines, sender reputation, and headers. It helps me avoid guesswork and maximize conversions.
“Fixed spam issues with email checker”
Just a couple of emails and I've already fixed several deliverability issues. Wow, this is awesome.
“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.
No feature tiers and no seats. The code changes the price of the first payment, nothing else.
Every paid plan comes with a 14-day refund, no questions asked. If Unspam does not earn its place in your Black Friday sends, ask in the support chat and we process it the same day.
Anyone starting a new Custom plan subscription before the deal ends, whether you sign up during the sale or already have a free account. You enter BLACKFRIDAY35 on the Stripe checkout page.
Yes. The annual price already includes the 15% saving, and BLACKFRIDAY35 takes 35% off that whole first year.
Not on an existing subscription. The code is applied when a new subscription starts at checkout, and a plan change does not pass through checkout.
Your plan renews at its regular price, the one shown struck through beside the discounted price. You can change or cancel the plan from the Subscription page.
No. Top-ups are bought outside checkout, so the code does not apply to them. Verifications you build into your plan are covered.
Tuesday, December 1, 2026 at 23:59 UTC, which is 6:59 pm in New York and 3:59 pm in Los Angeles.
35% off the first invoice of a new Custom plan subscription, billed monthly or annually, with code BLACKFRIDAY35 entered at checkout, from November 21, 2026 00:00 UTC to December 1, 2026 23:59 UTC. Cannot be combined with another code. Excludes credit top-ups and changes to an existing subscription. The 14-day refund applies as on every paid plan. A score of at least 7 of 8 in the spam filter game on this page, during the same dates, shows a second code worth 40% on the same terms, in place of BLACKFRIDAY35.