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Email Deliverability Test For Free
See Where Your Emails Land — Inbox, Spam, Or Promotions
Run an email deliverability test across Gmail, Outlook, Yahoo, and 50+ providers. Get your inbox placement rate with a breakdown of what blocks your emails (authentication errors, content issues, sender reputation damage).
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Find Your Email Deliverability Rate In 3 Simple Steps
This free Chrome extension ultimate unfair advantage, designed to fix common leaks and supercharge your results:
Pick a mode
Choose For an email account or For marketing systems (works with Gmail, Outlook, iCloud, Mailchimp, SendGrid, etc.).
Copy the seed addresses
Simply click the 'Copy test addresses' button, and open a new email from your ESP. Paste the list of emails (where you'll be sending the email).
Send the test email
Use 'test' for the subject and body (keeps results consistent), then send the email. You'll receive an email deliverability test report in reply.
Test 50+ Mailbox Providers Your Prospects Use
Most email deliverability test tools check 3–5 providers. EmailWarmup.com tests 50+ mailbox providers — including regional email service providers where your international prospects read emails every single day (the inboxes your competitors ignore completely because they don't know these providers exist).
| Provider | Provider Type | Details |
|---|---|---|
 Gmail | Primary | Personal and Workspace tested separately |
 Outlook / Microsoft 365 | Primary | Consumer and business configurations |
 Yahoo Mail | Primary | Used by 20% of B2B decision-makers |
 Apple Mail / iCloud | Primary | 46% of email opens |
 Zoho Mail | Business | Popular with SMBs internationally |
 ProtonMail | Business | Encrypted, security-conscious industries |
 FastMail | Business | Preferred by tech companies |
 Custom domains | Business | Your unique infrastructure |
 GMX | Regional | 40M users in Germany/Europe |
 Mail.ru | Regional | 100M+ users in Russia/Eastern Europe |
 QQ Mail | Regional | 900M users in China |
 40+ others | Regional | Asia, Europe, Latin America, Middle East |
Get a Detailed Inbox Placement Breakdown
Your email deliverability test shows exactly where emails land across these providers:
Inbox
Primary folder where prospects see emails first (where deals happen)
Promotions
Secondary tabs where emails get sorted away (damaging open rates by 40-60% because prospects check weekly, not daily)
Spam
Filtered as unwanted by spam filters (prospects never see what you sent, your sender reputation tanks further)
Unreceived
Blocked before delivery (you're paying for sends that vanish, burning email lists without data)
A Technical Audit of Every
Authentication Issue
Your email deliverability test report identifies exact problems keeping emails out of inboxes without vague scores. We show you specific issues with fixes you can implement immediately (within hours, not weeks of troubleshooting).
Authentication checks
SPF confirms authorized sending servers, DKIM verifies message integrity and prevents spoofing, DMARC ties them together (required by Gmail and Microsoft as of May 2025), and BIMI displays your brand logo in Gmail for instant trust. Missing authentication triggers instant email spam filtering — your emails get rejected before recipients see them (you’re not marked as spam, you're not delivered at all).
Content analysis
Modern spam filters flag trigger words in email content and subject lines, broken links that tank sender reputation, shortened URLs from Bitly that get flagged instantly, poor text-to-image ratios that force promotions tab sorting, and HTML structure issues that damage mobile rendering (67% of emails open on mobile first, broken layouts signal low quality to email service providers).
List quality indicators
Email bounce rate estimation shows predicted hard and soft bounces (anything above 3% damages sender reputation permanently), spam complaint risk assessment reveals whether you’re crossing the 0.1% threshold where spam filters start automatic blocking, and engagement prediction shows expected open rates based on your email content patterns and email address quality (low predictions mean filters throttle delivery before you send).
Domain reputation factors
Email blacklist status checks across 15+ major spam databases (you might be listed without knowing), domain age signals trust to email providers (new domains under 60 days face automatic filtering), and TLD reputation shows credibility (.com performs 40% better than .xyz or .info because scammers abuse cheap extensions).
Take An Email Deliverability Test If You’re A…
B2B sales teams launching cold email campaigns
Primary folder where prospects see emails first (where deals happen)
SaaS companies scaling email acquisition
Test new sequences before sending to 50,000+ prospects (catching spam triggers early saves months of reputation recovery).
Lead generation agencies managing multiple client domains
Monitor email deliverability across all accounts so your clients can land their emails in their prospect’s inbox, and not spam.
E-commerce businesses running promotional campaigns
Ensure marketing emails reach primary inbox, not promotions tab — every percentage point of placement equals direct revenue impact.
Recruitment agencies contacting passive candidates
Verify cold outreach lands in inboxes before prospects move to competitors (candidates don't check spam folders for job opportunities).
Marketing teams with dropping open rates
Diagnose whether engagement problems are email content issues or inbox placement issues, because most teams optimize subject lines when the real problem is email spam filtering.
Founders launching new domains
Start with proper email authentication and baseline email delivery test data (new domains under 60 days old are automatically filtered without warmup).
Start Landing Inbox Instead Of Spam With EmailWarmup.com
EmailWarmup.com helps you improve your sender’s reputation and deliverability by offering personalized IP warming services that mirror your sending style and patterns.
Here’s what else we offer:
See precisely what blocks your emails from reaching inboxes, and either start an email warmup rightaway or let an email deliverability consultant fix all your deliverability problems.
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Frequently asked questions
about our Email Deliverability Test
Here’s everything you need to know about our email deliverability test:
How accurate is the email deliverability test?
How long does an email delivery test take?
What's the difference between email deliverability and delivery rate?
Can I take an email deliverability test from any email service provider?
How often should I run email deliverability tests?
What inbox rate should I target for B2B cold email?
Will the email deliverability test help if my domain is already blacklisted?
Does this email delivery test work for cold outreach campaigns?
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