You upload the data.
The agent does the rest.
Drop in a CSV and Postyai writes a genuinely unique email for every single contact, warms its own sending inboxes, sends within safe limits, follows up on its own, and learns from every reply — so your outreach gets sharper each night while you sleep.
BYO data, accounts & keys — your data never leaves your control.
What is Postyai? Postyai is an AI email-marketing agent that runs your outreach on autopilot. You upload your contact data; it writes a unique email for each person, warms and manages your own sending inboxes, sends within safe limits, follows up, and improves from every reply. You bring your own data, email accounts, and LLM key — Postyai is the platform, and your accounts and data stay entirely yours.
One system, three jobs
A copywriter, a deliverability engineer, and an analyst — folded into one agent that never clocks off.
AI writes each email
Not one template with a merge tag — a distinct message per contact, drawn from the row you uploaded. Right angle, right offer, right tone for that person, every time.
Self-warming inboxes
Postyai warms your own connected inboxes automatically, ramps volume within safe daily limits, and spreads sends so your domain reputation climbs instead of getting flagged.
Self-learning nightly
Every open, reply and bounce feeds a nightly learning pass. Subject lines, timing and angles that land get reinforced; the ones that flop are quietly retired.
How does it actually work?
Four steps from a spreadsheet to a running campaign — and only the last one needs you.
Upload
Bring a CSV of contacts — names, emails, and any context columns you have.
Set the goal
Tell the agent what a win looks like: a reply, a booked call, a signup.
Agent runs
It writes, warms, sends within limits, and follows up — hands-off.
Review replies
You step in only for the warm replies worth a human. Everything else is handled.
Built for every business
If your growth depends on reaching the right inboxes, Postyai fits. See how teams like yours put it to work on the solutions page.
100% consent-gated. DPDP & GDPR-aligned.
Postyai only mails contacts you have a lawful basis to reach, honours unsubscribes instantly, and keeps every account, key and record inside your own control. Compliance is the default, not an add-on.
Point it at your contacts. Watch the replies come in.
Start free with your own data and accounts. No new inbox to buy, no credits to burn — just the agent doing the work.