Know where an email lands before you commit to sending it.
Send your email to a set of seed accounts and see exactly where it ends up, inbox, spam, or somewhere in between. Sendbox reports back an inbox rate, a spam rate, and an overall score so you know whether you're actually ready to launch.
Inbox Placement Testing
Deliverability · Testing
Start a placement test
Pick the email you want to check and kick off a placement test right from your dashboard. It goes out to seed accounts spread across all the major providers.
- Test before sending
- Clear metrics
- Status tracking
- Iterate and retest
Step 1
Start a placement test
Pick the email you want to check and kick off a placement test right from your dashboard. It goes out to seed accounts spread across all the major providers.
Step 2
Test progresses through stages
The test moves through pending, sending, monitoring, and completed, and you can watch its status the whole way through.
Step 3
Results show inbox and spam rates
Once it wraps up, you get back an inbox rate percentage, a spam rate percentage, and an overall placement score.
Where it fits
Pre-launch validation
Test every campaign before it goes live. Discovering you're landing in spam after 5,000 emails have already gone out is expensive. Discovering it beforehand costs nothing.
Subject line and copy testing
Swap the subject line, tweak the body copy, and run the test again. You'll see exactly which changes move you out of spam and into the inbox.
Post-warmup readiness check
Just finished warming up a new domain? Run a placement test to confirm you're genuinely hitting inbox before your first real campaign goes out.
Catch placement problems before they cost you leads.
See where you'll land before a real lead ever sees the email
A lot of cold email platforms have no inbox placement testing at all, so you launch a campaign and hope. Sendbox lets you check placement first and fix what's broken while it still costs you nothing.
- Beats Smartlead
- Beats Lemlist
Fix placement problems before they cost you leads
Most teams find out they're landing in spam only after a campaign has already gone out and the reply rates come in terrible.
- By that point the damage is done and the leads are already burned.
- Placement testing lets you catch and fix that before a single campaign email leaves the building, when the cost of fixing it is still nothing.
Clear results, not a wall of data
Inbox rate, spam rate, an overall score, that's the whole picture, with no complicated charts to interpret or cryptic metrics to decode.
- High inbox rate and low spam rate means you're clear to launch; anything else means it's time to tweak and test again.
Test placement before it costs you a single lead.
Test before sending
Know your inbox placement before a campaign ever goes live, instead of burning leads to find out you're in spam.
Clear metrics
Inbox rate, spam rate, and an overall score, simple numbers you can actually act on.
Status tracking
Watch your test move from pending through sending and monitoring to completed, so you always know exactly where it stands.
Iterate and retest
Adjust your email and run the test again, iterating for as long as it takes to get placement right.
Your email goes out to seed accounts spread across email providers, and Sendbox checks where each one landed before reporting back an inbox rate, spam rate, and overall placement score.
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