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WarmInbox

Runs in the background to warm up email accounts with human-like interactions, building sender reputation so messages reach inboxes.
SalesFor developers
warminbox.org ↗
Open warminbox.orgAlternativesSet it up for my team
WarmInbox: data, price, alternatives
At a glancechecked Oct 31, 2026

not read yet

Use

For
Marketers and businesses sending campaigns from GoHighLevel, Shopify or Gmail who need better inbox placement
How it runs
API
Used for
  • warm up new sending email addresses
  • build sender reputation before campaigns launch
  • connect email warm-up to apps via REST API
Worth knowingcomputed from what we read · each with its source
  • On the web since 2024, older than 65% of its shelfINITE Atlas
  • Has an MCP server (1 in the registry)public registry →
How a program reaches itfound, not claimed · read Oct 31, 2026
  • MCP serverorg.warminbox/mcpverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-31
  • Address to connectmcp.warminbox.org/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Salesby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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From people who use itnot part of the reading

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Questions this page answers
  • What is WarmInbox?

    Runs in the background to warm up email accounts with human-like interactions, building sender reputation so messages reach inboxes. It is listed in the Atlas under Sales.

  • Who is WarmInbox for?

    Marketers and businesses sending campaigns from GoHighLevel, Shopify or Gmail who need better inbox placement

  • What are alternatives to WarmInbox?

    In Sales, by use: Prospeo, Snov, HeyReach, Scalelist, Emailchaser.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk