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Warmup Inbox vs VeriMails™

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 VeriMails™
DetailWarmup Inbox logo Warmup InboxVeriMails™ logo VeriMails™
What it doesEmail warmup service that improves deliverability and sender reputation Email verification with real SMTP checks and catch-all detection
StageNot given Startup
FoundedNot given 2026
Based inSK US
Pricing modelFreemium Freemium
PricingNot given 100 free credits on signup. Prepaid credits from $19 for 10,000 verifications ($0.0019 per email). Monthly subscription plans: Starter $15/month (10,000 verifications/month), Pro $39/month (50,000/month), Business $69/month (100,000/month), Scale $150/month (500,000/month), Agency $300/month (1,500,
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)
  • Real-time SMTP verification checks mailbox existence on recipient mail servers
  • Disposable and role-based email detection
  • Email syntax validation and MX record checks
  • Bulk CSV upload and processing with parallel verification
  • REST API with single and batch endpoints for real-time integration
  • Email Finder to locate verified business email addresses
  • Non-expiring prepaid credits system
  • Safe to Send flag indicating deliverability status
  • Multiple verification layers for major email providers like Google, Microsoft, Yahoo
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
  • Catch-all detection separates uncertain domains clearly instead of marking them unknown
  • Much cheaper than competitors at scale, from $0.0019 per verification
  • Non-expiring credits give teams flexibility to purchase and use at their own pace
  • Results displayed in separate buckets so teams can choose their own risk tolerance
  • 100 free credits with no credit card required for testing
Community votes00
DR (Domain Rating by Ahrefs)62 no change since last check13 no change since last check
Trust Flow (Majestic)296
Citation Flow (Majestic)4630
Referring domains (Majestic)182490

5 details filled in for both companies.

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