Use your warmed-up SMTP accounts, AI randomization, and reply collection to increase deliverability and conversion.
Use your own SMTP accounts with high reputation for maximum deliverability.
Artificial intelligence creates unique variations of emails, reducing the risk of spam.
All replies and feedback are collected in a single interface for quick processing.
Pay-as-you-go without subscription. Transparent prices and some of the lowest on the market.
Every outbound message — both from campaigns and through the SMTP relay — is automatically scanned by a hybrid filter (heuristics + Gemini AI) for phishing, malware, brand impersonation, and scam. Anything suspicious is blocked before delivery.
This keeps our IP pool's reputation high — which is why deliverability stays stable. Marketing, transactional, and cold outreach pass through unaffected.
Four steps of automation. You prepare the content and database, then Postigo guides the recipient through the entire funnel.
CSV import or JSON via API. Postigo automatically runs addresses through an email-validator before sending.
Spintax {a|b}, merge tags, AI-rewrite of subject and body every N emails. Thousands of variations from a single template.
Account rotation with per-account limits. Failed SMTP accounts are automatically disabled, the campaign does not stop.
IMAP-sync + classification into positive / negative / question. Follow-up is sent automatically only to interested parties.
Pay-as-you-go without subscription. Credits do not expire — use them when it's convenient.
Teams that have switched from other platforms or built cold-outreach from scratch on Postigo.
"We switched from Instantly after they blocked our account for volumes. After connecting our Gmail SMTP to Postigo, the open rate stabilized at 32-38%. Reply-rate in the B2B segment is 4.2% with a cold base."
"AI-powered reply classification saves at least 3-4 hours a week. Previously, we manually sorted through two addresses — now the entire flow is in one dashboard, and we see positive responses first. Follow-ups are sent automatically — closures have increased by 1.5x in a month."
"Pay-as-you-go is the main advantage. No need to pay monthly when the work is seasonal. We bought a Mega Pack, used it for 4 months — the credits didn't expire. Stripe + crypto — this solves the problem of payments from different countries for our international team."
Key differences with popular ESPs and cold-email services.
| Feature | Postigo | Mailchimp | SendGrid | Lemlist |
|---|---|---|---|---|
| Your Own SMTP Accounts | ✓ | — | — | limited |
| AI Content Rotation | ✓ | — | — | spintax only |
| AI Reply Classification | ✓ | — | — | — |
| Pay-as-you-go (No Subscription) | ✓ | — | partial | — |
| Credits Don't Expire | ✓ | — | — | — |
| Cold-email Allowed | ✓ | prohibited | limited | ✓ |
| REST API + Webhooks | ✓ | ✓ | ✓ | ✓ |
| Crypto Payments | ✓ | — | — | — |
| Price per 1,000 Emails (avg.) | $0.40-$1 | $5-$15 | $1-$3 | from $59/month |
| Newsletter / Visual Builder | basic | ✓ | ✓ | — |
Comparison based on publicly available platform features at the time of writing. Postigo is for cold-email and outreach, Mailchimp/SendGrid are for newsletters and transactional emails. Choose according to the task.
Didn't find an answer? Write to [email protected] — we usually respond within an hour during business hours.
22+ SMTP providers, 4 payment gateways, REST API + Webhooks for CRM/Zapier/n8n.
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