Cold email law changes at every border, so I put an open model in the browser to check my drafts

Description and use

Coldproof checks cold‑email drafts against 20 country laws using open‑weight models in the browser, providing verdicts, checklists, and corrected versions to mitigate legal risk.

Problem

Freelance web workers sending cold emails to businesses in multiple countries risk violating diverse national marketing laws, leading to fines or domain bans.

Outcome

Coldproof enables local, privacy‑preserving compliance checks for cold emails, reducing legal risk and eliminating the need to upload drafts to external APIs.

Workflow

• Select recipient country and address type
• Paste email draft
• Model reads draft and returns JSON report with quoted text
• Page verifies quotes against draft
• Page checks required elements per country rules
• If missing, page generates fixed wording in 13 languages
• Return legal verdict, checklist, and corrected draft

Evidence

Coldproof checks a cold email draft against the law of the country it is going to.

Source

The first version let the model do everything: read the draft, decide what was wrong, rewrite it.

Source

Gemma got all five right. The smaller Qwen model made two mistakes on the trap.

Source