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Get a detailed spam score analysis to improve email deliverability and inbox placement.
With Smartlead's free email spam word checker tool, check your email copy for spam score, and identify and eliminate common spam triggers to improve your email deliverability - no signup required.
Built with an advanced analysis engine, the spam tester tool reviews your subject lines and email body and pinpoints the exact words that might trigger the spam filters.
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A Spam Checker scans your email copy and identifies the words and phrases that trigger spam filters. Once the spam word checker identifies these red flags, you can edit them and ensure your emails land in your recipient's inboxes. The email spam detector lets you optimize emails for better deliverability and higher engagement. Below is the step-by-step process of how to use the Email Spam Checker.
Copy and paste your email copy under the Spam checker box.
Check the spam score and identify the words that may trigger the spam filter.
From the editor, edit the copy and remove the words marked as Urgency, Shady, Overpromise, or Unnatural.
A spam checker works as an essential tool for any business or marketer looking to maintain
the sender's
reputation. Here are the common use case scenarios for using a spam checker,
Before launching a large email campaign, use the spam checker tool to quickly scan your subject lines and email copy for words that may trigger spam filters.
Cold emails are the ones that face the highest scrutiny. Thus, before you actually send that persuasive copy to warm your leads, it's always better to check the spam score on the email spam checker.
Email marketers know that while re-engaging inactive subscribers, words such as ‘ACT FAST’ or ‘Best offer’ promote urgency. But it can be enough to put your email in the spam box. Find and remove them before your sender's reputation is in jeopardy.
Enhance your cold emailing with smart tools for better deliverability, personalization, and engagement.
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Book a DemoFounder, StackOptimise
Smartlead's combination of automation, unlimited inboxes, and easy campaign management has completely transformed how we run cold email campaigns.
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Founder, Cold Email Hackers
We have about 15 companies and we use Smartlead for all of them.
Founder, DutchSave Media
One of the things I love about using Smartlead is the deliverability feature. If they landed in the bounce or spam folders, we could resolve this quickly.
Co-Founder, Growth Today
I want to continue to use Smartlead to make operations more seamless - the plan is to bring more clients here and build more SOPs.
Founder, FueltoFly
Smartlead listens to the agencies and customers and builds according to what people want, that has really made things easier for us.
Founder, OutboundSync
We build an infrastructure product, and OutboundSync communicates with Smartlead itself. I love the webhook and API. They're really well done and keep getting better.
Founder, Axoleads
With SmartDelivery, you can put all of that in the hands of the tool. It ensures your emails land in inboxes, and by running a simple test, you can see if you're hitting the mark.
Founder, Claygen
Deliverability is the cornerstone of cold email outreach. You could have the best email copy in the world, but if no one is seeing it, it's useless. I really love the feature where you can actually give client accesses to your clients.
Co-Founder, Cymate
I do not want to switch to another software. Pick a solution you trust, stick with it, and keep refining your copy.
CMO, Avalanche Capital
Managing large volumes of emails through multiple inboxes used to be a logistical nightmare. With Smartlead, the process is seamless. We book thousands of discovery calls through cold emails. These campaigns are generating leads at a scale we never thought possible.
Founder, Growth Engine X
We came for the unlimited inboxes, and we stayed for the API. 1.5M cold emails/month, 7,767+ inboxes managed.
Head of Community & Ecosystem, TxtCart
You cannot replace having 10,000 touches with potential clients. When you have that much distribution and reach, you really start to see incredible results. The simplicity of Smartlead made all the difference. It doesn't require you to be a technical wizard.
Founder, Hyperke
Smartlead has been a game-changer for us. It increased our appointment volume, improved ease of use, and offered valuable features. 80% increase in appointments/month, peak of 276 appointments in a single month.
Founder, Kinetyca
Smartlead has been our cold email backbone from day one. The platform evolves constantly, keeping pace with how deliverability and personalization need to work today. 21% overall reply rate, $175K in 4 months for multiple B2B clients.
Founder, Reachflow
Smartlead is centered around deliverability and constantly evolving. Their API is not like any other platform. Smartlead covers all our needs. The focus on core features like deliverability and API integration is unmatched.
CEO, Halfwarm
Our approach to crafting conversational emails led to reply rates that many of my peers thought were unattainable.
Co-Founder, letstrike
We've grown on zero capital, zero marketing, purely cold emailing - and that's the story we love to tell. The best approach is no approach if you can't handle domain meltdown. The second best is something like Smartlead that's built from the ground up for deliverability at scale.
Founder, Fenixtal
Smartlead's white-labeling and automation let us punch above our weight. The 12M euros sales potential? That's what happens when you combine human creativity with Smartlead's precision.
Co-Founder, Digital Creativs
Nine out of 10. Ninety percent of our clients are on Smartlead unless they come in with an existing setup. That's the default.
Co-Founder, BuildingReach
At the end of the day, you have to take a bet on one tool or another. It was a no-brainer taking that bet on Smartlead. We had to even turn down the volume of our marketing campaigns - Smartlead was capable of driving more volume than our sales team was able to fulfill.
Founder & MD, Prospectiv
Since starting the business in January of this year, we've already generated $200K in sales exclusively from cold email. Smartlead has been central to our operations and has exceeded our expectations.
Founder, Growthlynk
There's so much stuff built on top of it. I would be dead if I had to rebuild it with another tool. I can manage hundreds of senders easily. I can send hundreds of thousands of emails.
Founder, Corebits
The platform's HubSpot integration, real-time Slack updates, and advanced campaign customization have been game changers for our business and our clients'.
Founder, Apex Ascension
From day one, we've never used anything else.
An email spam checker scans your subject line and email body, assigns a spam score, and highlights the specific words and phrases likely to trigger spam filters. The words are grouped as Urgency, Shady, Overpromise, or Unnatural. You need to edit the flagged copy and re-check until your score is clean.
Not really! It removes one major cause of your email landing in spam by suggesting the copy changes, but not all of them. Email Deliverability also depends on sender reputation, SPF/DKIM/DMARC authentication, warmup, and engagement. Use the checker alongside mailbox warmup and an inbox placement test for the full picture.
We don't store your content. The free email spam checker tool is built for quick, on-the-spot checks. Paste, analyze, edit, and move on.
Yes, Smartlead spam word checker tool is completely free with no signup or credit card required. Paste your copy, get your spam score, and fix the flagged words instantly.
Lower is better! There's no single universal number across providers, so aim to clear all flagged words rather than chasing a specific figure. Remember, the score reflects copy only; sender reputation and authentication also decide inbox placement.
Common triggers include urgency words ("act now," "limited time"), shady phrases ("100% free," "risk-free," "guarantee"), overpromises ("double your revenue," "instant results"), and unnatural formatting (ALL CAPS, excessive "!!!", "$$$," "click here").
The tool flags these automatically and suggests cleaner alternatives.
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