EmergeSending providers / Resend
Setup guide · API key
Send with Resend from Emerge
Resend is a modern email API built for developers. Connect it to Emerge to send campaigns, automations and app email through your Resend domain, with Resend's webhooks reporting bounces and complaints back.
Why use Resend with Emerge
- Developer teams already using Resend for app email
- Adding newsletters and automations without a second provider
- Your domain and reputation stay yours — Emerge adds contacts, templates, campaigns, automations, tracking and bounce handling on top
1. Get your Resend credentials
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Create an API key
In Resend open API Keys → Create API Key. Sending access is all Emerge needs, and you can restrict the key to one domain.
2. Authenticate your sending domain
SPF, DKIM and DMARC are what let inboxes trust your mail — without them it’s far more likely to land in spam.
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Verify your domain
Open Domains → Add Domain and add the SPF (MX and TXT) and DKIM records Resend lists. Until the domain is verified, Resend only sends test emails to your own address.
3. Connect Resend in Emerge
In Emerge, open Senders, click the provider's button and fill in the form. Emerge checks the credentials with the provider before saving anything, and stores them encrypted.
- API key
- API Keys — Sending access is enough.
- From email
- An address on your verified domain.
Then send yourself a test email from the sender’s row. You can add more senders to the same pool — Emerge rotates between them and moves on if one fails or hits its limit.
4. Report bounces and complaints back
In Resend open Webhooks → Add Endpoint, paste the URL from Emerge's Senders page → Bounce reporting → Resend, and select email.bounced and email.complained.
Once bounces come back, Emerge stops sending to those addresses, and pauses a campaign whose bounce or complaint rate gets too high.
Good to know
- Resend limits API requests per second by default — keep Emerge's campaign sending speed (Senders → Sender settings) at or under 120 emails a minute unless Resend has raised yours.
More detail is in Resend’s documentation.
Start sending through Resend.
Free to start. Connect your Resend account in a couple of minutes.