Outbound Tech Stack Cost Calculator

Running cold email in-house means stitching together a sending platform, mailboxes, domains, verification, enrichment, and LinkedIn tooling, each billed separately, none of them showing you what a competing stack costs. Enter your volume below to see the real monthly DIY total.

Emails sent per month Number of mailboxes Number of sending domains Email verification tier LinkedIn Sales Navigator seats Other software Clay (data enrichment)Launch plan — $185/mo Claude Code subscriptionClaude Pro — $20/mo

Sending platform is a tiered estimate modeled on published volume-based pricing (Instantly Growth $37/mo up to ~5K sends, Hypergrowth $77.60/mo up to ~25K, higher tiers extrapolated above that). Mailboxes at $8.40/mailbox/mo (Google Workspace Business Starter, monthly billing). Domains at ~$1/mo each (~$12/yr registrar cost). Verification assumes each send is checked once against monthly volume, a simplification, real usage verifies a list, not every send. LinkedIn Sales Navigator Core at $119.99/seat/mo. Clay at its Launch self-serve plan, $185/mo (2026 pricing, credit-based, heavier usage costs more). Claude Code priced at the Claude Pro subscription, $20/mo (Claude Max runs $100–$200/mo for heavier usage). Checked August 2026, all figures are published list prices and will drift, treat as directional.

DIY Stack — Monthly Cost

Sending / sequencing platform$78

Mailbox hosting$84

Domains$5

Email verification$160

LinkedIn Sales Navigator$120

Clay$185

Claude Code$20

Total DIY stack / month$652

At this volume your DIY stack software costs land below Danish Lead Co.'s $3,000/mo starting price, about 78% less on tooling alone. That number does not include the time to run it: strategy, copywriting, deliverability monitoring, and reply handling, worth comparing against a done-for-you quote.

See the all-in-one Danish Lead Co. price →