Linking Resend as a source
Let AI connect your sources for you
Skip the manual setup — run this in your project and the wizard auto-detects your databases and APIs and connects them to PostHog.
The Resend connector pulls your Resend data – audiences, broadcasts, contacts, domains, emails, suppressions, email metrics, and broadcast clicked links – into the PostHog data warehouse.
Adding a data source
- Go to the sources tab of the data pipeline section in PostHog.
- Click + New source and then click Link next to Resend.
- Next, you need an API key from Resend. In your Resend API keys settings, create an API key. Grant the key full access (or a read-enabled access token) so that all Resend data can be read. Copy the key value (it starts with
re_). - Back in PostHog, enter the key in the
API keyfield and click Next. - Select the tables you want to sync, set the sync method and frequency, then click Import.
Once the syncs are complete, you can start using Resend data in PostHog.
Available tables
| Table | Description | Sync method |
|---|---|---|
audiences | Contact audiences in your Resend account | Full refresh |
broadcasts | Broadcasts sent through Resend | Full refresh |
broadcast_clicked_links | Click counts per URL for each broadcast | Full refresh |
contacts | Contacts across each of your audiences | Full refresh |
domains | Sending domains | Full refresh |
emails | Sent emails | Full refresh |
email_metrics | Daily email delivery, bounce, open, click, and complaint metrics | Full refresh |
suppressions | Suppressed email addresses with suppression origin | Full refresh |
Incremental tables sync only new or updated records on each run. Full refresh tables reload all data on each sync.
Configuration
| Option | Type | Required |
|---|---|---|
Authentication type | select | Yes |
Supported tables
| Table | Description | Sync method | Incremental field | Primary key |
|---|---|---|---|---|
audiences | A list of contacts you can send broadcast emails to. | Full refresh | — | — |
broadcasts | An email campaign sent to an audience. | Full refresh | — | — |
domains | A sending domain configured in Resend for authenticated email delivery. | Full refresh | — | — |
emails | A transactional email sent through Resend. | Full refresh | — | — |
contacts | A contact belonging to an audience, with subscription status. | Full refresh | — | — |
suppressions | An email address on the team's suppression list, which Resend skips when sending. | Full refresh | — | — |
email_metrics | Account-level email delivery and engagement metrics, one row per UTC day. | Full refresh | — | — |
broadcast_clicked_links | A link clicked in a broadcast, with its total and unique click counts. | Full refresh | — | — |