How WarmupIP Helped Email Service Providers (ESPs) Improve Client Deliverability &
Retention
How WarmupIP Helped Email Service Providers (ESPs) Improve Client Deliverability & 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.
- 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
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
👉 Check our seed hosting engine: Host Your Seeds with Humans
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 |
Client Feedback
“WarmupIP gave us a competitive edge — we now onboard clients faster, with reputation safety from Day 1.”
Offer Inboxing-as-a-Service to Your Clients
Learn more at: https://warmupip.com
Book a strategy call: https://calendly.com/warmupip/30min
