Tested Against Real Seed Mailboxes at Top Providers
Email Deliverability Test
See where your emails actually land — inbox, spam, or missing — across Gmail, Yahoo, Outlook, and other major providers. Send an email to our seed mailboxes with a Track ID, and we'll show you exactly how the world's biggest mail providers handled it. No login requiredHow It Works
1
Send a Test Email
Add your sending domain and fire off a single test to PowerDMARC’s seed mailboxes. No SMTP or DNS changes needed.
2
We Check Everything
We validate SPF, DKIM, and DMARC while measuring inbox placement across all six providers.
3
Get Your Fix Guide
Receive a Domain Security Score, per-provider placement breakdown, and a prioritised list of fixes with DNS examples. Pair it with our email deliverability best practices for long-term wins.
Your email can pass authentication and still miss the inbox.
Even with SPF, DKIM, and DMARC in place, messages land in spam, promotions, or get blocked entirely. Placement depends on far more than authentication, and most teams only find out after a campaign goes out.
Provider filtering
Gmail, Outlook, and Yahoo each weigh signals differently, so the same message can land in three different places.
Sender reputation
A history of complaints, bounces, or spam traps quietly drags placement down even on a clean send.
Unsubscribe compliance
Missing one-click unsubscribe headers now breaks Google and Yahoo bulk sender rules and hurts placement.
That is the gap an email deliverability tester closes: see exactly where your mail lands, and why, before you hit send.
What Is an Email Deliverability Tester?
An email deliverability tester is a diagnostic tool that simulates a real-world send to multiple inbox providers and tells you exactly where your message landed: inbox, spam, promotions, or blocked entirely. Instead of guessing why open rates dropped after a campaign goes out, an inbox placement test gives you that visibility before the send, so you can fix authentication gaps, content triggers, or reputation issues in advance.
PowerDMARC's tester goes a step further by combining inbox placement data with full SPF, DKIM, and DMARC validation in a single workflow, covering the full scope of email deliverability testing without bouncing between standalone tools.
Frequently Asked Questions
What is an email deliverability tester?
An email deliverability tester is a tool that sends a controlled message to a set of seed mailboxes across major providers and reports back whether your email reached the inbox, spam folder, or promotions tab.
How do I test email deliverability?
Add your sending domain to PowerDMARC, send a test email to the generated seed addresses, and review the report. You'll see per-provider placement, authentication results, and a prioritised list of fixes. The whole process takes a few minutes per domain.
Which email providers are tested?
PowerDMARC tests against real mailboxes at Gmail, Outlook, Yahoo Mail, iCloud, AWS Mail, and Zoho Mail, covering the providers that handle the overwhelming majority of B2B and B2C inbox traffic. Gmail and Outlook placement tend to be the most scrutinised, especially for bulk senders.
Do I need a separate tool or subscription?
No. The Email Deliverability Tester is built directly into the PowerDMARC platform, so the same login that gives you DMARC reporting also covers inbox placement testing, unsubscribe compliance, and remediation guidance. There's no separate purchase or integration to manage.
What is one-click unsubscribe, and why does it matter?
One-click unsubscribe is a header-based mechanism (RFC 8058) that lets recipients opt out of bulk email with a single action, without being forced through a landing page. Since February 2024, Google and Yahoo have required it for senders dispatching more than 5,000 messages per day to their users, and missing it can directly damage your sender reputation and Gmail inbox placement.
Can I test multiple domains?
Yes. PowerDMARC supports multi-domain testing and monitoring under a single account, with separate trend dashboards per domain. This is particularly useful for enterprises operating multiple brands and agencies managing client portfolios.
Ready to test your deliverability?
Stop guessing. Start landing in the inbox!
