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Warmup Inbox vs Sendscape

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Warmup Inbox compared with Sendscape
DetailWarmup Inbox logo Warmup InboxSendscape logo Sendscape
What it doesEmail warmup service that improves deliverability and sender reputation Email API and SMTP relay with MCP server for AI assistants
StageNot given Not given
FoundedNot given Not given
Based inSK Not given
Pricing modelFreemium Freemium
PricingNot given Not given
Key features
  • Sync inbox to network of 30,000+ real inboxes
  • Automated interactions: replies, marking as important, removing from spam
  • Email health monitoring and reports
  • Spam filter monitoring
  • Email reputation check
  • Outreach sequences
  • Custom warm up settings (Pro plan)
  • Scheduled warm up (Pro plan)
  • HTTP API for sending email
  • SMTP relay on port 587 with STARTTLS
  • Batch sending up to 100 messages per request
  • Signed webhooks for delivery, bounce, complaint, open and click events
  • Automatic bounce and complaint suppression
  • DKIM, SPF and DMARC domain authentication with Domain Connect
  • Newsletters and broadcasts with one-click unsubscribe
  • Sandbox test addresses and idempotency keys
  • Remote MCP server for Claude, ChatGPT and Cursor
  • Local MCP server with npx for file attachments and inline images
What makes it different
  • 30,000+ real inboxes used by real people in the network
  • One of the first companies to offer email warmup services
  • Simple and straightforward platform and pricing
  • Can help resurrect domains with poor reputation
  • Transactional and marketing email in one account, no need for separate services
  • MCP server integration allows AI assistants like Claude, ChatGPT and Cursor to send and manage email directly
  • Free plan with 5,000 emails per month, no credit card required
  • Local MCP server runs on your computer for secure file attachment without server access to local files
  • No overage charges by default; hard stop at quota with optional paid extra emails
Community votes00
DR (Domain Rating by Ahrefs)62 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)290
Citation Flow (Majestic)460
Referring domains (Majestic)18240

4 details filled in for both companies.

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