What Is Inbox Placement Testing?
Inbox placement testing measures where your emails appear across major mailbox providers.
Instead of only tracking whether an email was accepted by a server, inbox placement testing helps determine where your message actually lands once it arrives.
Where Your Emails Could Land
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Primary Inbox
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Promotions Tab
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Spam Folder
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Junk Folder
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Other filtered locations
What We Test
Our inbox placement analysis evaluates every signal that determines where your emails land.
Gmail Placement
Analyze placement across primary and secondary tabs.
Outlook Placement
Deep verification on Outlook and Office 365 inboxes.
Microsoft 365
Corporate tenant filtering and enterprise quarantine.
Yahoo & AOL
Consumer mailbox filters and bulk sender requirements.
Authentication Health
SPF, DKIM, and DMARC alignment validation.
Sender Reputation
IP and domain reputation signals and scorechecks.
Domain Reputation
Historical placement patterns and blacklist checks.
Content Triggers
Formatting, links, and spam score evaluation.
Common Problems We Discover
Many inbox placement issues are caused by underlying technical and reputation factors.
Poor sender reputation
Accumulated negative signals from past recipient behavior.
Missing authentication records
Incomplete SPF, DKIM, or DMARC alignment causing distrust.
Aggressive sending behavior
Spikes in volume that trigger automated mailbox throttles.
Domain reputation damage
Burned secondary domains dragging down new mailboxes.
Tracking domain problems
Generic or flagged tracking domains flagging spam filters.
Infrastructure issues
Misconfigured reverse DNS or shared IP neighboring spam.
Without testing, these problems often remain hidden until pipeline and reply rates crash.
Real-World Placement Diagnostics
Our testing process focuses on actual inbox behavior across calibrated seed mailboxes rather than theoretical checks. We diagnose seed placement across Gmail, Outlook, Yahoo, and Apple Mail with zero guesswork.
Do You Know Where Your Emails Are Actually Landing?
Many senders assume their emails are reaching the inbox simply because they aren't bouncing.
Unfortunately, that's not always the case.
Without proper testing, it's impossible to know what prospects are actually seeing. Small reputation shifts can silently divert half your volume to spam.
Your Emails May Be:
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Landing in the Primary Inbox
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Filtered into Promotions
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Sent to Spam
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Hidden in Junk Folders
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Treated differently across mailbox providers
What You'll Receive
A complete breakdown of your inbox placement performance with clear next steps.
Inbox Placement Report
A complete report showing where your emails are landing across providers.
Gmail Placement Analysis
Detailed breakdown of Gmail inbox, promotions, and spam placement.
Outlook Placement Analysis
In-depth analysis of Outlook and Microsoft 365 placement results.
Authentication Review
Evaluation of SPF, DKIM, and DMARC alignment.
Deliverability Observations
Key findings on reputation, infrastructure, and sending patterns.
Actionable Recommendations
Prioritized steps you can take to improve inbox placement.
Whether you're sending cold outreach, newsletters, or customer communications, understanding inbox placement is one of the fastest ways to uncover hidden deliverability issues.