Free cold email tools

Check if your sending domain is on the Spamhaus DBL or SURBL — instant, no signup.

Burn verdicts for every sending domain, read from your own Instantly or Smartlead data.

Build a valid SPF record from your sending providers, with the 10-lookup limit checked.

Look up and read any domain's DMARC record — policy, coverage, alignment, and reporting.

Paste a lead list and see who's on Google, Microsoft 365, or a security gateway — via live MX lookup.

Score your cold email copy for spam-trigger words and structural red flags.

Your safe daily and monthly cold email volume, prospect capacity, and expected replies.

Turn real costs and hours into a defensible monthly retainer and per-meeting price.

The six-step beginner path: domain setup, warmup, a clean list, a sequence that replies, safe volume, monitoring.

The proven 5-step sequence — copy-ready, with the reasoning behind each step.

Lead data, sending, warmup, AI, and monitoring — the tools that actually hold up, layer by layer.