Send campaign events wherever you need them
Trigger a webhook whenever a lead is created or added, replies, or bounces, or when an email sends or gets opened. Configure it per campaign, and verify every payload came from Sendbox using a secret-key signature.
Webhooks
Outreach
Point it at an endpoint
Send webhooks to any HTTP endpoint, your CRM, Zapier, Make, n8n, or something you built yourself. Each campaign carries its own webhook configuration.
- Configured per campaign
- Signed payloads
- Six event types
- Plain HTTP delivery
Live events, no polling required
Configured per campaign
Each campaign keeps its own webhook endpoints and event subscriptions, so things stay organized.
Signed payloads
Every webhook ships with a signature generated from your secret key, letting you confirm it genuinely came from Sendbox.
Six event types
lead.created, lead.added, lead.replied, lead.bounced, email.sent, and email.opened, subscribe to exactly the ones you need.
Plain HTTP delivery
Webhooks reach any HTTP endpoint, which means they work with CRMs, automation tools, and backends you built yourself.
Step 1
Point it at an endpoint
Send webhooks to any HTTP endpoint, your CRM, Zapier, Make, n8n, or something you built yourself. Each campaign carries its own webhook configuration.
Step 2
Choose what fires it
Subscribe to whichever events matter: lead.created, lead.added, lead.replied, lead.bounced, email.sent, or email.opened.
Step 3
Confirm it's really Sendbox
Each payload arrives with a signature you can check against your secret key, so you know the request is genuine.
Where it fits
CRM sync
Push replies and bounces into your CRM the instant they happen, so your pipeline is never out of date.
Building your own automations
Kick off n8n or Make workflows whenever a lead replies or bounces, build whatever post-engagement automation your process needs.
Feeding a data warehouse
Stream campaign events straight into your warehouse for reporting or attribution work you'd rather run yourself.
Delivered instantly, never batched
Webhooks you can verify, not just receive
Sendbox sets webhooks up per campaign instead of one blanket setting for the whole account. Each endpoint gets its own secret key so you can check a payload's signature before trusting it, across six event types that track a lead from first send to final outcome.
- Beats Smartlead
- Beats Lemlist
Six events, the full lifecycle covered
Subscribe to lead.created, lead.added, lead.replied, lead.bounced, email.sent, and email.opened, configured however you like per campaign.
- Every payload carries a signature from your secret key so you can verify it on your end.
Six: lead.created, lead.added, lead.replied, lead.bounced, email.sent, and email.opened, each configurable independently per campaign.
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