See it in action

Your Versatile
Email Warmup Tool
for Resend

Setup in 2 minutes

Built for Resend teams

A warmup engine that reads like strategy, not setup docs.

Rewarmly helps you ramp sending volume with deliberate pacing, reputation safeguards, and clear milestones. All without turning your workflow into a full-time job.

Readable by Design

Every warmup configuration is broken into plain-language stages: start, ramp, stabilize.

  • Clear daily targets
  • Automatic pacing adjustments
  • Simple status signals for quick decisions

Creative, but Controlled

Use flexible templates and rotation logic so activity looks natural while still following safe deliverability rules.

  • Template variations per stage
  • Traffic shaping to avoid spikes
  • Circuit-breaker style safety checks

Privacy Is the Default

Contact-level warmup state lives in Resend. Rewarmly stores only what it needs to run your configuration.

No contact exports. No inbox scraping. No unnecessary data retention.

Safety

Gradual by default

Warmup volume grows in controlled steps so sender reputation develops steadily instead of spiking unpredictably.

Continuity

Stay warm automatically

After ramp-up, Rewarmly keeps healthy activity patterns running in the background to maintain deliverability over time.

Ownership

Data stays yours

Your contact data remains in Resend while Rewarmly handles orchestration and high-level metrics.

How it works

  • 1. Connect Resend and choose the domain you want to warm.
  • 2. Review the generated plan, then launch with safe defaults or custom pacing.
  • 3. Track progress and deliverability signals from one dashboard as reputation improves.
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