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Run unlimited tests across Gmail, Outlook, Yahoo and more to see exactly where your emails land.
Identify whether you’re hitting primary inboxes, promotions tabs or spam so you can adjust before launching a campaign
Get notifications if a sending account starts landing in spam and take action immediately.
Full content scan
Analyse your subject lines, body copy and links with industry‑standard filters to uncover common spam triggers and deliverability red flags.
Clear scores & fixes
Receive a simple score and actionable recommendations to improve your templates before sending.
Stay compliant
Check your attachments, images and authentication headers to avoid common spam filter traps.
Monitor your domains and IPs against hundreds of blacklists and get notified if you’re listed
See trends in your sender reputation over time and catch issues early before they hurt your campaigns
Insights help you adjust sending patterns and fix problems before they impact deliverability.
Instant authentication check
Verify if your SPF, DKIM and DMARC records are configured correctly and up to date.
Clear guidance
Step‑by‑step guidance tells you exactly how to repair missing or misconfigured records—even if you’re not technical.
DMARC insights
View DMARC reports showing which sources send on your behalf, identify failures and strengthen your domain against spoofing.
Run as many tests as you need—no limits, no extra fees—and schedule them to run automatically
Share detailed deliverability reports with your team or clients to align on fixes and next steps.
SmartDelivery integrates seamlessly with your Smartlead campaigns and major email providers, consolidating all deliverability data in one place
Get AI-native operating system for your enterprise sales team
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 deliverability test analyzes whether your emails successfully reach recipients' inboxes or get flagged as spam. It helps identify potential issues by checking spam filter triggers, inbox vs. spam placement, blacklist status, and email authentication settings like SPF, DKIM, and DMARC.
Additionally, it assesses your SpamAssassin score to determine how spam filters might rate your email content. By running an email deliverability test, you gain actionable insights to optimize your emails, improve inbox placement, and maximize engagement.
SmartDelivery is Smartlead’s email deliverability testing tool that will give you the most accurate depiction of your emails’ deliverability with an expert-vetted industry benchmark - Placement Rate. You can run both manual and automated tests powered by advanced algorithms to ensure your emails reach the inbox - boosting engagement and performance.
SmartDelivery offers comprehensive email deliverability testing across various mailbox types and providers. It runs tests against common spam filters like SpamAssassin, ensuring they are optimized to land in the inbox and improve email deliverability.
Yes, SmartDelivery allows you to tailor your manual tests by selecting specific mailboxes, setting test frequencies, and customising the content you want to test. You can also personalize the reports to focus on the email deliverability metrics most relevant to your campaigns.
SmartInbox offers comprehensive email deliverability check and testing across various mailbox types and providers, analyzing your email content, links, and images. It runs tests against common spam filters like Google’s and Barracuda, ensuring your emails are optimized to land in the inbox, and enhance your sender reputation.
Automated testing lets you set up recurring tests at your preferred frequency, ensuring continuous monitoring of your email campaigns. This helps you catch and fix issues promptly, maintaining consistent email deliverability.
The tool verifies your existing SPF, DKIM, and DMARC records, to ensure your emails are properly authenticated and trusted by receiving servers. This reduces the risk of your emails being marked as spam.
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