Test before you send.
See where you actually land.
Send a test email to real seed addresses across 6 major providers. Know exactly which inboxes receive it, which spam folders catch it, and which providers drop it entirely — before your campaign goes out.
87%
Avg Inbox
8%
Spam
5%
Missing
6 major providers · Content analysis · Results in minutes
Provider by provider
Where your email lands, provider by provider
Each bar shows the percentage of seed addresses that received your email in the inbox, spam folder, or not at all. Real mailboxes, real results.
Gmail
92%
Outlook
84%
Yahoo
88%
Apple Mail
95%
AOL
79%
Google Workspace
90%
Before you blame the inbox
Six checks that affect placement
Your email content is scanned for common spam triggers. Fix issues here before they cost you inbox placement.
Email Preview — Content Analysis
Subject Line
“Your March report is ready”
No spam trigger words detected
HTML Ratio
Hi Alex, here is your monthly deliverability report. Open rates improved by 12% this quarter…
Text-to-HTML ratio within range
Image Weight
chart-march.png
680 KB · 48% of body weight
Link Count
View full report · Update preferences
Under 5 unique domains linked
Unsubscribe Header
Unsubscribe · VeriFox Inc, 123 Market St
List-Unsubscribe header present
Spam Score
SpamAssassin: 4.2 / 5.0
Flagged image weight and subject-to-body ratio
4 passed · 2 warnings
Fix image weight before sending
Real seed addresses · Not simulated · Actual ESP behavior
How it works
Send. Check. Fix.
01
Send test email
We give you a unique seed list of real addresses across 6 major providers. Send your campaign to that list exactly as you would to your real subscribers.
02
We check inboxes
Within minutes, our system logs into each seed mailbox and checks where your email landed — primary inbox, promotions tab, spam folder, or missing entirely.
03
Review and fix
Get a per-provider breakdown with content analysis. See exactly what to change in your email before you send to your full list.
Don't send to 100k until you test on 6.
One test email to 6 providers tells you more about your deliverability than sending blind to your entire list.
6 providers · Content analysis included · Results in under 5 minutes