What is deliverability tracking?

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.

How fast can I get my inboxes up and running?

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.

How many emails do you recommend I send per day per inbox?

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.

What happens if my inbox gets flagged or breaks?

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.

How is Peeker different from other inbox providers?

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.

Can I cancel anytime?

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.

Built for Cold EmailersHOT

Identify Burned Inboxes
Before Campaign Performance Drops

Keep deliverability high by detecting inbox burnout early and switch to healthy inboxes automatically, no manual intervention required.

Get Started Talk to Sales

Trusted by 500+

001Burned Inboxes

Reasons Your Inbox Burn

Inboxes Get Burned And It Happens Fast

Inboxes don't randomly fail. When sending patterns look risky or low-quality, deliverability drops, spam placement rises, and inboxes get flagged, affecting your campaign outcomes.

001

You Land In Spam Without Knowing

Without tracking, you're sending blindly. Your emails can slip into Spam for days while your inbox still looks active and you only notice when replies disappear.

002

Low Engagement

If prospects aren't replying, opening, or clicking, inbox providers assume your emails aren't wanted, so more of your future sends get pushed to spam.

003

Poor Inbox Setup

Missing or misconfigured SPF, DKIM, and DMARC removes key trust signals, making it easier for providers to filter your mails aggressively.

002Why Burn Detection

Use Burn Detection

Get Notified When There's Burn

Stop losing days to deliverability crashes. Burn Detection protects your send capacity so results stay consistent week after week.

Self-Healing / Auto Swapping

When an inbox gets burned, Peeker automatically swaps it for a fresh and healthy one. No manual intervention, no downtime, no paused campaigns.

Burn Notifications

Catch burn early, not after results crash. Get notified via email or webhook the moment burn signals appear on any inbox and then automatically trigger a fix-up action.

Advanced Deliverability Tracking

Track inbox performance using real-time deliverability insights to know which inboxes are healthy, underperforming, or burned.

003Process

How It Works

Setup Inboxes With Peeker And Start Enjoying Burn Detection

001

Inbox Setup

Choose an inbox type, select how many you need, and start setup. We'll configure everything so your inboxes are ready to send.

002

Delivered To Sequencer & Ready To Use

Your inboxes land in your Peeker dashboard connected, with warm up settings, live, and ready to send.

Delivered inboxes ready in Peeker dashboard

003

Burn Detection & Automatic Swapping

Your campaign inboxes are monitored in real time. When one shows burn signals, it's automatically swapped for a fresh, healthy inbox so your campaigns stay stable.

Burn detection and automatic swapping overview

004FAQs

Burn Detection FAQ

Burn Detection
FAQs

Placeholder answers for the most common burn detection questions.

Burn Detection is a feature that monitors inbox and domain deliverability and health, and notifies you when inboxes have a high chance of landing in spam or are already landing in spam. When an inbox starts burning out, you're alerted immediately and can use auto-replacement to swap it out without delay.

We go deep into the historical data of the sequencer, inbox, domain, and campaign results to look for abnormalities or declines in your performance data. Our algorithm improves with every customer, making detection increasingly precise. It works alongside our deliverability tracking to give you complete visibility into inbox health and performance across all campaigns.

No, burn detection is a background monitoring action and does not do anything beyond notifying you and your team members. However, you can use other features within peeker such as our auto-replacement automations and triggers, to maintain your sending infrastructure.

While we can never be 100% accurate since we do not control Google or Microsoft, our data suggests that our burn detection is 95% accurate, and our data continues to improve over time with each customer's insights. This high accuracy means you can confidently use auto-replacement to swap out flagged inboxes without second-guessing the system.

Yes, our base version of Peeker is free for everyone, which includes burn detection as well as many other cold email deliverability features. Advanced burn detection and real-time burn notifications are available on our paid plans.

005Testimonials

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