Postmark + CRM
Bring your own Postmark key. Sambandh routes campaign sends through your Postmark server token so opens, clicks, and bounces flow back to the CRM via Postmark's webhooks. You own the deliverability reputation; we provide the campaign tooling.
What you can do with Postmark + Sambandh
Use cases that drive real results for your business.
Transactional specialist for campaigns
Postmark is dev-loved for transactional deliverability. Using the same provider for campaign sends means both streams share deliverability reputation and Postmark's tight bounce handling.
Multi-message-stream support
Postmark separates transactional and broadcast via message streams. Sambandh lets you pick which stream to use per campaign — keep your transactional reputation clean while using the broadcast stream for drip sequences.
Per-org credential isolation
Each Sambandh org stores its own Postmark server token, encrypted with AES-256-GCM. No cross-tenant email sends. No shared reputation risk across customers.
Native webhook event parsing
Sambandh parses Postmark's Delivery, Bounce, SpamComplaint, and Open/Click webhooks and writes them onto the campaign's timeline — same shape whether the provider is Resend, Postmark, SES, or SendGrid.
Why teams choose Sambandh for Postmark
How to connect Postmark to Sambandh
Set up in under two minutes. No engineering help needed.
Get your Postmark server token
In Postmark dashboard → Servers → select the server you want to use → API Tokens. Copy the server token (starts with a UUID).
Paste into Sambandh Settings → Email → BYOK
Pick Postmark from the provider dropdown, paste the server token, optionally override the message stream (defaults to "outbound"), hit Test connection.
Configure webhook in Postmark
In Postmark → Servers → Webhooks, point the webhook URL at `https://sambandh.io/api/webhooks/byok/postmark` and enable Delivery, Bounce, SpamComplaint, Open, and Click events. Copy the signing secret back into Sambandh.
Send your first campaign
Create a campaign as usual. Sambandh routes all outbound through your Postmark server token. Deliverability rep, cost, and quota are entirely yours — we just handle segmentation and sequencing.
Frequently asked questions
Common questions about the Postmark integration.
Ready to connect Postmark?
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