Everything PostStack does
One EU-hosted platform for sending, receiving, and tracking email — from a single transactional API call to full IMAP mailboxes. Explore each capability below.
Email API
Send transactional email from EU infrastructure with a single API call. Official TypeScript, Python, and Go SDKs, plus REST examples for every major language.
Dynamic email templates
Reusable email templates with Handlebars variables and React Email. Preview, version, and send updates without redeploying your app.
Contact management and audiences
Import contacts, build audiences, and segment recipients for targeted email. Subscription topics and RFC 8058 one-click unsubscribe are handled for you.
Email broadcasts
Send newsletters and marketing campaigns to your audiences from the dashboard or the API. Schedule, segment, A/B test, and track performance.
SMTP relay
A standards-compliant SMTP relay hosted in the EU. Drop it into WordPress, Laravel, Rails, nodemailer, or any SMTP client, and keep full tracking and webhooks.
Webhooks
Real-time, HMAC-signed notifications for every email event. Deliveries, bounces, opens, clicks, and complaints streamed to your endpoint with automatic retries.
Email analytics and tracking
Opens, clicks, bounces, and complaints recorded in real time. Per-email, per-broadcast, per-domain, and per-ISP analytics with exportable reports.
Mailboxes and webmail
EU-hosted email hosting with a built-in webmail client. Create mailboxes on your domain, read and send from the dashboard, or connect any IMAP or POP3 client.
Slack, Discord & Telegram notifications
Get pinged in Slack, Discord, or Telegram the moment inbound mail arrives, an email bounces, deliverability dips, or a webhook auto-disables. Human-readable alerts with the same retry and auto-disable guarantees as webhooks — no JSON blobs, no polling.