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Built for Cold EmailersHOT

Self-Healing Inboxes
for Cold Email

Maximize deliverability by automatically creating inboxes, monitoring performance, and instantly swapping out burned infrastructure before it hurts your campaigns.

Trusted by 500+ 

BoardyBoardy
ClientPushClientPush
EverOutBoundEverOutBound
OO
Scale Your LeadsScale Your Leads
BoardyBoardy
ClientPushClientPush
EverOutBoundEverOutBound
OO
Scale Your LeadsScale Your Leads
BoardyBoardy
ClientPushClientPush
EverOutBoundEverOutBound
OO
Scale Your LeadsScale Your Leads
BoardyBoardy
ClientPushClientPush
EverOutBoundEverOutBound
OO
Scale Your LeadsScale Your Leads
Dashboard showing self-healing inbox performance and domain health
001Problem
The Problem with Cold Emails

Most Cold Emailers
Face These Problems

01

You Land In Spam And Don't Even Know It

You might be landing in spam and have no idea. Warmup reply rates don't reflect where your actual emails go.

You get stuck investigating blindly and still can't figure out what's actually breaking your deliverability.

02

You Waste Time On Investigating The Issue, Slow Support, And Spend Weeks Rebuilding Inboxes

You waste hours analyzing data yourself, discover your inboxes are burned, contact support that vanishes, then spend time rebuilding infrastructure with no guarantee that you'll fix the actual problem.

Problem section illustration showing deliverability drop and delayed support conversation
002Peeker's Solution
Peeker's Value To Cold Emailers

Never Wonder If You're Landing In Spam Again

Stop wasting time babysitting your inboxes. Get access to Peeker's deliverability features for your inbox infrastructure without spending a dime.

[DELIVERABILITY ANALYTICS]

Track Inbox Performance In Real-Time

Catch issues before they impact your campaigns with real-time visibility into inbox health, spam placement risk, and performance across inboxes/campaigns.

Deliverability analytics chart

[BURN DETECTION]

Detect Burned Inboxes 24/7

Keep deliverability high by detecting inbox burnout early and switch to healthy inboxes automatically. Get burn alerts via slack or your email when your infrastructure underperforms.

Burn detection performance table
003Peeker Inboxes
Premium Features

Buy Inboxes And
Automate Deliverability

Get everything you need for high email deliverability when you set up inboxes with Peeker. After delivery to your sequencer, everything is automated by default. Manual controls are also available whenever you need them.

Premium inbox features dashboard

[BUY Google and Microsoft Azure Inboxes AND GET ADDITIONAL FEATURES]

[AUTOMATIC RECONNECTS]

Automatic Inbox Reconnects

Inbox reconnects get automatically handled silently and fast, keeping your sending capacity at max volume.

Automatic inbox reconnects feature
004Integrations
Works With Your Setup

Direct Integrations with
Top Cold Email Tools

Integrations with top cold email tools

Peeker connects with the platforms cold email teams use every day. No messy setup. Directly via API. Just plug in and we automatically identify which of your inboxes are burned so you can swap them out.

005Prebuilt Packages
Built With Everything You Need

Popular Packages

Start free with Deliverability Analytics & Burn Detection, unlock even more with pricing below

Starter

1-249 Inboxes

$3.50/inbox
Get Started
  • Advanced Deliverability Analytics i
  • Automatic Inbox Swaps i
  • 3,735 email sends per day
  • API Integration
  • In-app live support
  • Bulk deployment
  • US ISPs
MOST POPULAR

Sender

250-1,000 Total Inboxes

$3.00/inbox
Get Started
  • Advanced Deliverability Analytics i
  • Automatic Inbox Swaps i
  • 14,985 email sends per day
  • API Integration
  • In-app live support
  • Bulk deployment
  • US ISPs

Scaler

1,000+ Total Inboxes

$2.80/inbox
Get Started
  • Advanced Deliverability Analytics i
  • Automatic Inbox Swaps i
  • 15,000+ email sends per day
  • API Integration
  • In-app live support
  • Bulk deployment
  • US ISPs

Calculate Your Custom Pricing Or Talk To Sales

006Testimonials
Hear From Top Leading Giants

Why Cold Emailers Love
Self Healing Inboxes

Peeker gives cold emailers what others don’t: real tracking, clean setup, and inboxes that actually land in primary.

Trusted by founders who consistently land in the primary inbox and drive higher converting campaigns

4.9%+

Average Reply Rate

200,000+

Inboxes monitored in real time

1,000+

Burned domains replaced

007FAQs
Find Answers

Scale With Clarity

Everything you need to know before getting started with Peeker Inboxes.

Deliverability tracking allows you to track whether your domain and sending inboxes are healthy, underperforming, or burned. We use a combination of historical and recent reply rate data per domain along with some formulas to accurately identify whether or not a domain is burned.
We promise a delivery time of under 48 hrs but many of our orders are done just within 2–4 hrs after placing an order.
For best results 3 emails per inbox (75 inboxes per domain) is what we recommend, but most of our users send 6 emails per inbox per day for maximum sending volume.
If your inboxes get flagged for spam we offer premium domain swaps, allowing you to swap your current inboxes for new ones without having to buy another subscription or stopping your current sending volume.
We offer domain level deliverability tracking so you can monitor your inboxes if they are underperforming or not and we offer premium swaps that will be coupled with automated swaps so you don't even have to worry about managing your infra anymore.
There is a required 30 day period for your subscription where we do not allow early cancellations for prorated amounts. As long as you cancel before your renewal then yes you can cancel whenever you like.