Resend
Send transactional email through a verified Resend account
Connect Resend to send one transactional or workflow email from a server-side app action. Swarmz stores the API key and exposes only the bounded send_email operation.
Connect Resend
Verify a sending domain in Resend first. In Settings > Integrations, select Resend, enter an API key with the minimum required sending permission, and name the connection.
Example prompt:
Use Resend to email the signed-in customer a receipt after the payment webhook succeeds. Send from receipts@example.com and include the order number.
Every send is a write action. The AI asks for approval before sending when it is acting in chat.
Verify and recover
Send to a test address you control. Confirm the message in Resend's logs, then check delivery and the displayed From address.
If Resend rejects the sender, complete domain verification or use an address on a verified domain. Rotate a rejected or exposed key in Resend, then update the connection. Removing the connection stops future sends; it does not recall delivered mail.