InboxEagle
Cost Optimization

Stop Paying for
Contacts Who
Never Open.

The average email list has 40% dead weight — contacts who haven't opened in a year, costing you real money every month. InboxEagle finds them, scores them, and tells you exactly which to suppress — with zero revenue risk.

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Savings Calculator

Current List Size

250,000

Current Monthly ESP Cost

$1,200 / mo

Suppressible Contacts (est.)

~97,500 (39%)

Monthly Savings Estimate

After suppression

$1,200 / mo

$720 / mo

−$480

saved monthly

$5,760 / year

40%

Average List Size Reduction

$0

Revenue Lost to Suppression

60%

Deliverability Improvement

Real-time

Cost Savings Calculator

How It Works

Reduce Your ESP Bill in Three Steps

Data-driven suppression that saves money without losing a single engaged subscriber.

Step 1 Connected

Connect your ESP

Link your email service provider to InboxEagle. We analyze your full subscriber list to identify inactive, unengaged, and role-based addresses.

Step 2 Analyzed

Identify suppressible contacts

InboxEagle scores every contact for engagement health, deliverability risk, and suppression safety — so you know exactly which contacts to remove without losing revenue.

Step 3 Saving

Suppress and save

Export your suppression list and apply it in your ESP. Your monthly bill drops, your deliverability improves, and your engagement metrics reflect real subscribers.

Features

Complete Email Cost Optimization

Every tool needed to identify waste, cut costs, and improve deliverability simultaneously.

Savings Calculator

Input your list size and current ESP cost — InboxEagle shows your projected monthly savings after suppressing unengaged contacts.

Engagement Scoring

Every contact scored 0–100 for engagement health — opens, clicks, recency, and frequency — so suppression is data-driven, not guesswork.

List Health Reports

Regular list health audits showing your active/inactive ratio, role-based address percentage, and estimated monthly overpayment to your ESP.

Suppression Tier Recommendations

InboxEagle segments suppressible contacts into tiers — immediate suppress, re-engagement candidate, monitor — so you choose the right action for each group.

Deliverability ROI Tracking

Track how list hygiene improvements correlate with inbox rate, open rate, and spam complaint changes — connecting cost savings to deliverability gains.

ESP-Ready Exports

Export your suppression list in the exact format required by Klaviyo, Mailchimp, SendGrid, HubSpot, and 20+ other ESPs — apply suppressions in one click.

The Difference

Bloated List vs. Lean, High-Performance List

Paying for contacts who never open doesn't just waste money — it actively hurts deliverability for the contacts who do.

Without InboxEagle

Paying $1,200/mo for 250k contacts — 97k inactive
  • Overpaying ESP by $480/month for dead contacts
  • Low engagement signals hurt sender reputation
  • No visibility into which contacts are truly dead
  • Suppression decisions made by guesswork
  • List hygiene done once a year, if at all

With InboxEagle

Saving $480/mo
  • Every contact scored for engagement health
  • Suppression recommendations with zero revenue risk
  • Monthly list health audits to catch new dead weight
  • Deliverability improves as inactive contacts removed
  • ESP bill reduced to match your active audience only

See how much dead contacts are costing you

Use the free Revenue Calculator to estimate your email cost savings potential.

Try Revenue Calculator →
Free 14-day trial · No credit card required

Cut Your ESP Bill in Half. Improve Deliverability at the Same Time.

InboxEagle identifies every inactive contact on your list — and tells you exactly which to suppress, so you save money and improve sender reputation simultaneously.

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FAQ

Frequently Asked Questions

How does list suppression save money on my ESP bill?
Most ESPs charge based on your total contact count — including contacts who haven't opened an email in 12+ months. By suppressing these unengaged contacts, you reduce your billable list size and move to a lower pricing tier. Customers with 100k+ lists typically see 30-50% reductions in ESP costs after a hygiene pass, with zero impact on revenue-generating sends.
Won't removing contacts hurt my revenue?
No — if anything, the opposite. Contacts who haven't opened or clicked in 12+ months are not generating revenue, but they are generating spam complaints, hurting your sender reputation, and potentially costing you inbox placement for active subscribers. Removing them improves deliverability for the contacts who do engage, which typically increases revenue from the active segment.
How does InboxEagle decide which contacts to flag for suppression?
InboxEagle scores every contact based on: recency of last open/click, frequency of engagement over the past 90/180/365 days, role-based address patterns (info@, noreply@, etc.), hard bounce and complaint history, and comparison to your list's average engagement. Contacts that score below configurable thresholds are recommended for suppression or re-engagement campaigns.
What is a re-engagement campaign and when should I run one?
A re-engagement campaign is a final-chance email sequence sent to low-engagement contacts before suppression — giving them an opportunity to confirm they still want to hear from you. InboxEagle identifies which contacts are worth attempting to re-engage (intermittent engagers) vs. which should be suppressed immediately (zero activity for 18+ months).
Does InboxEagle integrate directly with my ESP for suppression?
InboxEagle connects to major ESPs via API and can push suppression lists directly. For ESPs without direct API integration, we generate export files in the exact format required — CSV with the correct column structure for Klaviyo, Mailchimp, SendGrid, HubSpot, ActiveCampaign, and others.