Resend Integration & Email Workflow Automation
Run Resend on autopilot. Keep the veto.
67 actions17 triggers
Broadcast campaigns and contact updates fire out of Resend before you've had a chance to review them. Rills proposes each action; you approve before anything sends.
Interactive. No signup. 14 days free · approvals always free.
Most automation fires first, asks later. Rills shows you the change before it ships.
Every consequential communication action from Resend arrives on your phone first. Approve in seconds. Decline without explaining yourself. Workflows wait, paused at zero cost, until you decide.
Queue 3
Send broadcast to 340 contacts in the Re-engagement segment?
email.opened rate dropped below 12% over last 14 days
Segment last updated 6 days ago; 28 contacts added since
Same broadcast template approved and sent last month
Free to wait. Free to think.
Approvals and logic don't cost a credit. Pause a workflow for three hours or three weeks. The price is the same: zero. You only pay when something real happens: an AI call, an outbound action.
Approve from your phone in five seconds.
Swipe right when you're sure. Decline when you're not. Between meetings, mid-coffee, on the train. No dashboard to babysit, no inbox triage, no 3am stomach-drop wondering what shipped while you slept.
Routine cases graduate themselves.
Every approval feeds a confidence score for that exact workflow shape. The obvious cases (the ones you've green-lit fifty times) start running on their own. The judgment calls still come to you.
About Resend automation
Bounce events pile up, unsubscribes go unprocessed, and a broadcast you meant to review goes out to the wrong segment because Resend automation ran without waiting for your call.
When Resend runs unsupervised
The moment an email event fires, downstream actions follow. Some of those actions are fine on autopilot. Others are the kind you read about in your support inbox an hour later.
- email.bounced fires and a contact update removes the address permanently before you confirm it wasn't a temporary soft bounce.
- email.complained triggers a suppression that quietly removes a paying customer from your entire list without a second check.
- A broadcast scheduled via "Send or schedule a broadcast" goes out to a stale segment because no one caught the audience mismatch first.
- A bulk "Update a contact by ID or email" runs on the wrong filter and overwrites subscription preferences across hundreds of records.
- email.failed retries stack up and a transactional message hits a recipient inbox six times before the loop is caught.
What Rills does inside Resend
Rills sits between the event and the action. When a contact update, a broadcast send, or a domain verification is about to run, Rills queues the proposal first. You review the scope, the target segment, and the trigger that started it before "Send or schedule a broadcast" or "Update a contact by ID or email" touches anything real.
The broadcast still goes out; you just see who it's going to first.
When Resend events should and shouldn't act on their own
Not every communication event carries the same risk. Some are safe to graduate to autonomous once Rills has seen the pattern enough times. Others should always wait for your approval.
- email.delivered: Routine confirmation with no downstream write; safe to graduate once delivery rates are stable.
- email.opened: Low-stakes engagement signal used for scoring; fine to act on autonomously after a few supervised cycles.
- email.clicked: Predictable enough for automated segment tagging once the click-to-segment logic has been reviewed and confirmed.
- email.complained: Always needs a human. A complaint that suppresses the wrong contact can break a customer relationship.
- email.bounced: Needs review each time. Hard versus soft bounce handling has consequences that are hard to reverse after "Delete a sending domain" or contact removal runs.
- contact.deleted: Irreversible. Any workflow that removes a contact record should wait for your explicit approval before it ships.
What wakes Rills up in Resend
When these events fire, Rills proposes the next move and waits for your call.
Contact Created
Fires when a new contact is added to your audience. Use this to track new subscribers or sync contacts with external systems.
Email Bounced
Fires when an email bounces permanently because the recipient's address is invalid or no longer exists. Use this to clean up invalid contacts from your mailing lists.
Email Clicked
Fires when a recipient clicks a link in your email. Use this to track engagement and identify interested users.
Email Complained
Fires when a recipient marks your email as spam or complains to their email provider. Use this to remove complainers from your mailing list to protect your sender reputation.
Email Delivered
Fires when an email successfully reaches the recipient's mail server. Use this to confirm delivery and update your email status tracking.
Email Failed
Fires when an email fails to send due to an error. Use this to identify and log failed sends for troubleshooting and retry logic.
What Rills can do in Resend
6 of 67 actions across reads, writes, and updates.
- 01
Create a new broadcast
Create a draft broadcast to send newsletters, announcements, or marketing campaigns to your contacts. Once created, you can customize the content and schedule it for delivery at the optimal time.
- 02
Send or schedule a broadcast
Send a finalized broadcast email campaign to your target audience immediately or schedule it for a specific time in the future. Once sent, the campaign cannot be modified, so use this when everything is ready for delivery.
- 03
Create a new contact
Add a new contact to your mailing list with their email address and optional information like name and custom details. Use this to grow your subscriber base from signups, imports, or other sources.
- 04
List all contacts
Retrieve your complete list of contacts with optional filtering by segment to view and manage your mailing list subscribers.
- 05
Send a batch of up to 100 emails
Send up to 100 emails at once with different recipients and content in a single request, making it efficient to reach multiple people simultaneously.
- 06
Send an email
Send transactional emails to customers triggered by specific actions, with support for HTML formatting, attachments, and scheduled delivery.
Common questions about Resend automation
How do I automate Resend contact updates without emails going out wrong?
Rills watches your Resend events and proposes the contact update before it goes through. You approve or reject from your phone. Nothing changes in your audience until you say so, which means a bad data import does not silently corrupt your list.
Can I get mobile approvals before Resend sends a broadcast?
Yes. When Rills detects a trigger that would fire a broadcast or contact change, it queues the proposed action for your approval. You review it from your phone, swipe to approve, and only then does it ship. You keep the veto no matter where you are.
How do I automate Resend bounce and complaint handling?
Set up a Rills workflow triggered by email.bounced or email.complained events. Rills proposes the right action, whether that is updating a contact property or removing them from a segment, and waits for your call before anything changes in your Resend account.
Can Rills automatically verify a Resend sending domain when it gets flagged?
Rills can propose a domain verification action the moment a domain.updated event fires. It does not run that verification until you approve it. If your domain is having deliverability issues, you decide when to act, not the automation.
How is Rills different from Zapier for Resend automation?
Zapier fires actions the moment a trigger hits. Rills proposes the action first and waits for your approval before anything ships. If a Zapier zap misreads a bounce event and unsubscribes the wrong contacts, it is already done. With Rills, you see the proposed change before it goes out.
Why use Rills instead of Make for Resend workflows?
Make and similar tools execute automatically once you publish a scenario. Rills keeps a human in the loop at every step you choose. Routine actions can graduate to autonomous over time as confidence scoring learns your patterns, but you control when that happens.
Does Rills support Resend webhook events like email.opened and email.failed?
Yes. Rills works with the full range of Resend events including email.opened, email.failed, email.delivery_delayed, contact.created, domain.updated, and others. Each event can trigger a proposed action that sits in your approval queue until you review it.
How much does Rills cost for Resend automation?
Approvals and workflow logic are free. You only pay when Rills takes a real action, like an AI call or an external API operation inside Resend. Building your workflow, setting conditions, and reviewing proposals on your phone costs nothing.