Native MCP support now live

Mails land in Primary Inbox. Every time.

Deliverability infrastructure built for modern AI sales agents and developers. We ditched the cheap SMTPs for a 100% Real Account "Clean Pool" powered by multi-turn LLM conversations.

Connect an Inbox ($19/mo) Explore Docs
agent-deliverability.log
$ simplywarmup monitor [email protected]
✓ Connected to real M365 account pool
08:02:11 [WARN] Email flagged as "Promotions"
08:02:12 Initiating Spambox Recovery protocol...
08:02:13 Moving to Primary -> Marking Important
LLM Engine: Generating contextual reply...
✓ Multi-turn positive engagement sent.
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2.4M
Emails Recovered from Spam
100%
Real Google/M365 Pool
0
Low-Rep SMTPs Allowed

You can't trick modern spam filters with old tactics.

We rebuilt deliverability from the ground up for the AI era.

100% Real Inbox Network

No generic XYZ corp domains. Only high-reputation Google Workspace and M365 accounts strictly vetted to build immense sender trust.

LLM Multi-Turn Replies

Static replies are flagged as spam footprints. We use LLMs to generate hyper-varied, contextual conversation threads that mimic real human engagement.

Model Context Protocol

SimplyWarmup acts as a native tool. Let your AI agents query inbox health via the Safety Interlock API before executing massive outbound campaigns.

Stop burning domains.

Join the waitlist to secure your spot in the Clean Pool.