Incremental email sync
Resend's emails endpoint has no updated-at field. Polytomic tracks each email's summary and re-reads only the ones that changed.
Resend
Polytomic connects Resend to your data warehouse, databases, and other tools for ETL. Sync sent and received emails, contacts, and deliverability metrics into one place for marketing and support reporting, without writing code.
Deliverability metrics included
Read opens, clicks, bounces, and complaints by day or month, overall, by email, or by domain.
Rate limit respected
Requests stay under Resend's team-wide rate limit automatically, so large syncs never trigger throttling.
Example workflows
Bring deliverability metrics into your data warehouse for reporting
What you can sync
Read sent and received emails, contacts, broadcasts, and deliverability metrics out of Resend and into your data warehouse, databases, or other connected tools.
From Resend
Sent emails with delivery status, tags, and attachments
Received emails with attachments and raw message downloads
Broadcasts, automations, and their run history
Contacts, segments, topics, and custom properties
Deliverability metrics by day, month, email, or domain
How it works
Connect a Resend API key. Polytomic reads sent and received emails, broadcasts, automations, contacts, and deliverability metrics into your data warehouse, database, or other connected tools.
Resend's emails endpoint has no updated-at field, so Polytomic snapshots each email's summary and re-reads only the ones that changed on every run. The API key used to connect needs full access, since a sending-only key cannot read data back out of Resend.
- Discover sent emails, received emails, broadcasts, and contacts automatically
- Track deliverability metrics daily or monthly, by email or domain
- Re-read only the emails that changed since the last run
- Pull attachments for sent and received emails as child records
- Read automations, their run history, and step configuration
- Discover domains, webhooks, templates, and account configuration too
How to set up
Resend connections authenticate with an API key generated from your Resend dashboard. Create the key in Resend, then enter it in Polytomic to save the connection.
How to get connected
- 1In Resend, go to API Keys and create a new key
- 2In Polytomic, go to Connections, click Add connection, and select Resend
- 3Enter the API key, then click Save
Frequently asked questions
Why teams choose Polytomic
No engineering required
Set up and manage syncs without writing code.
Flexible data modeling
Use SQL to define exactly what data gets synced.
Handles scale automatically
Supports large datasets with incremental syncs and bulk APIs.
Start syncing your data with Resend in minutes
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