Warm Up Your Email

Cold emails that reach the inbox

Deliverability

For AI agents

None readiness

About

What is Warm Up Your Email

Warm Up Your Email works by simulating real email engagement on your behalf — opening messages, replying to them, and pulling them out of spam — to train inbox providers that your sending domain is trustworthy. It's built for founders and SDRs running cold outreach at the solo or small-team level, where a damaged sender reputation can quietly kill an entire campaign before a single reply comes in. The standout capability is its spam removal behavior: actively rescuing emails from spam folders signals to providers that your messages belong in the inbox, which compounds over time into better placement rates. That said, this is a focused warm-up tool — it doesn't manage sequences, write copy, or provide analytics on campaign performance, so you'll need separate tooling for the rest of your outbound stack.

Deliverability

Capabilities

Key features

Deliverability infrastructure

warmup, spam tests, and sender reputation

Our verdict

Vanderbuild take

For founders and SDRs who've watched open rates crater because their domain landed on a blocklist or got flagged as spam, Warm Up Your Email addresses the root problem directly — it conditions your sending reputation before your sequences go live. On the agentic readiness front, this is UI-only with no API available, so you cannot drive it programmatically or wire it into an agent workflow without scraping; it sits outside any MCP or automation layer entirely. Pricing isn't publicly visible, which makes it harder to budget against your outbound stack — you'll need to contact them or sign up to understand cost. The honest limitation here is scope: this tool does one thing, and once your domain is warmed, you'll still need a separate sequencer, inbox, and analytics layer to run actual outbound.

Mateusz Sekta

Founder, vanderbuild

Learn more

Our Resources

The wedge

Agentic stack profile

API

Not public

No public programmatic access.

No public API. Not usable from an agent without scraping.

Agentic readiness

None

Not usable from an agent without scraping.

No public API. UI-only. Not usable from an agent without scraping, which we don't recommend.

Stack role

Deliverability

Where this tool slots into an agentic pipeline.

Plays the role of Deliverability in an agentic pipeline. Use it to keep email sending reputation healthy — warmup, spam tests.

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