Outreach that works.
Vantage Mail grades and drafts B2B outreach to private-equity firms and their portfolio companies. Every line is measured against the way Cortado's best operators actually write.
Six axes are judged by AI against your chosen reader. Deliverability is checked by rule. Together they blend into the overall grade.
Hover an axis to see how it shapes the score · 0 spam triggers
How it scores.
Seven axes. Six judged, one measured.
Six axes are scored by AI against your chosen reader and your firm's writing corpus. Deliverability is checked by rule (spam words, profanity tiers, syllable load, em-dash density), so that number never drifts on a model's mood.
Persona fit, the first axis, grades the email against a defined reader: who they are, what they care about, how they want to be approached. Each firm builds the personas it actually sells to, then measures every draft against the one it picks.
From the team.
Writing on outreach that lands.
Does AI-written cold email actually work in 2026?
Hybrid wins. Across every head-to-head test we could verify, AI-drafted and human-edited email beats both pure AI and pure human — and pure AI carries roughly double the spam-flag rate.
Read the post →Can B2B recipients tell when a cold email was written by AI?
In blinded tests, barely better than chance. But prospects do not need to prove a machine wrote it — only to find it generic enough to ignore. Write for a bullshit detector, not an AI one.
Read the post →What's actually verified about AI cold email and spam filtering
No mailbox provider publicly penalizes an email for being AI-written. What Gmail, Outlook, Yahoo and Apple do measure is authentication, complaints, reputation and deceptive formatting.
Read the post →Get started.
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