How WarmupIP Helped Email Service Providers (ESPs) Improve Client Deliverability &
Retention How WarmupIP Helped Email Service Providers (ESPs) Improve Client Deliverability & Retention

ESPs Retention
  • Industry : Email Service Providers (e.g. SendGrid resellers, SMTP platforms, marketing automation tools)
  • Target Audience : Email Service Providers, SMTP resellers, and marketing automation platforms seeking to improve client inboxing, retention, and onboarding success.
ESPs Retention
  • Industry : Email Service Providers (e.g. SendGrid resellers, SMTP platforms, marketing automation tools)
  • Target Audience : Email Service Providers, SMTP resellers, and marketing automation platforms seeking to improve client inboxing, retention, and onboarding success.

The Problem :

Most ESPs struggle to maintain consistent inboxing for their clients due to:

  • New IP/domain reputation issues
  • Shared IP pool abuse
  • Clients using cold domains or new sender identities
  • Gmail/Outlook spam classification after just a few bad sends

Problem
Problem
Leads to

Leads to

  • High bounce rates
  • Low inbox placement
  • Frustrated clients leaving the platform

How WarmupIP Solved It

WarmupIP acted as a white-label inboxing engine for the ESP to protect their infrastructure and retain high-LTV clients.

Implementation:
  • Warmed up hundreds of client domains using WarmupIP’s automated rotation system
  • Built custom warmup schedules for onboarding new users
  • Provided reputation monitoring dashboard to the ESP
  • Integrated our human-powered seed click/open engine

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Results for a Mid-Sized ESP:

Metrics Before WarmupIP After WarmupIP (3Weeks)
Gmail Inboxing (Avg. across accounts) 22% 84%
Client Retention Rate 63% 91%
New Account Ramp-Up Time 21 days 7 days
Support Tickets on Delivery Issues 75/week <10/week

Offer Inboxing-as-a-Service to Your Clients

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