Recover after warmup failure
Stabilize after a failed ramp — throttling, junking, or blocks during warmup.
- Difficulty:
- Advanced
- Prerequisites:
- Logs of the failure window, Auth still valid
- Last updated:
- 2026-07-15
- Author:
- empire
Objective
Warm up a new sending domain
Build mailbox-provider trust for a new sending domain through controlled volume growth.
Starting state
Warmup ramp stalled due to filtering or blocks
Prerequisites
- Logs of the failure window
- Auth still valid
Estimated time
2–4 hours
Difficulty
advanced
Required access
- ESP
- DNS
- Postmaster/SNDS where available
Inputs
- Failure symptoms
- Last good daily volume
- Audience quality notes
Step-by-step instructions
- Stop the bleedDrop to last known-good volume or pause non-essential sends.
- Fix root causesAddress list quality, auth gaps, or infrastructure mismatches found in diagnosis.
- Re-enter carefullyResume below the failure point and hold longer between steps.
Verification
- Stable metrics for several days before any increase
Common mistakes
- Re-ramping at the same step size that failed
- Is the identity burned enough to require domain/IP replacement?
Rollback / recovery
- Return to seed volume or pause pending infrastructure changes
Expected outcome
Warmup resumes without repeating the failure pattern.
When to escalate
- Blocks persist after reduced re-entry