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The Best Outbound Cold Email Tech Stack (2025)

Jan 24, 2025

The Best Outbound Cold Email Tech Stack (2025)

The Best Outbound Cold Email Tech Stack (2025)

By Ean Tudor | Founder Revenueix

Email Sending Tools

  • Smartlead.ai: Offers email warmup, automated cold email campaigns, and unlimited inboxes.

  • Instantly.ai: Provides email warmup, automated cold email campaigns, and unlimited inboxes.

Inbox Infrastructure

  • Google Workspace: Manually set up inboxes and warm them up before sending.

  • Outlook: Standard inboxes manually set up and warmed up as needed.

  • Cheapinboxes: Affordable Google Workspace accounts automatically set up and integrated with Smartlead.

  • ScaledMail: Affordable option for sending up to 11,000 emails per month with no warm-up required.

  • Mailreef: Private infrastructure for creating domains and mailboxes, with automatic setup in just a few clicks.

Email Validation Tools

  • MillionVerifier: Reliable email validation at $77 for 50,000 credits.

  • DeBounce: More affordable option at $50 for 50,000 credits.

  • Best Practice: Always verify your new lead lists before sending emails to avoid burning your inboxes.

Catch-All Validation

  • Bounceban: Affordable option for catch-all validation at $40 for 10,000 credits.

Company Data Sources

  • Crunchbase: Provides company intent data, funding rounds, and financials.

  • BuiltWith: Shows which technologies companies are using.

  • Store Leads: Quality e-commerce data for identifying e-commerce businesses.

  • Pitchbook: Offers financials, valuations, investor data, market trends, and industry insights.

Lead Scraping Tools

  • Apollo.io: Affordable lead database. Use tools like Findylead.com to scrape leads more affordably. Always verify Apollo data before sending.

  • LinkedIn Sales Navigator: Industry-specific targeting to find prospects. Additional enrichment is needed for email and phone data.

  • ZoomInfo: High-quality data, though less cost-effective compared to Apollo.

Data Enrichment Tools

  • LeadMagic: Enriches B2B data, including email and mobile phone data, plus other enrichment features.

  • Prospeo: Provides accurate email, mobile phone data, and LinkedIn Sales Navigator data.

  • Icypeas: Similar to Prospeo, specializing in B2B data enrichment.

Look-Alike Data Tools

  • Ocean.io: Helps find look-alike leads to current customers, with enriched company data.

  • PandaMatch: A more affordable option for finding look-alike leads with enriched company data.

Email Workflow Tool

  • Clay: A comprehensive outbound workflow tool for data enrichment, waterfall email validation, and personalized outreach automation.

Deliverability Optimization Tool

  • EmailGuard: Includes SPF, DKIM, DMARC record checks, domain monitoring, blacklist checks, inbox placement tests, and spam word detection.

Let’s Grow Together

If you're running a B2B business, SaaS, or agency with a proven offer and want to scale with an outbound cold email system, book a discovery call today.