Partner spotlight: EmailBison
EmailBison is a deliverability-first cold email platform for top agencies and GTM teams. See how it syncs into HubSpot or Salesforce via OutboundSync.
Jason Ma


EmailBison → HighLevel
Agencies sending at EmailBison scale can show clients the results inside HighLevel. OutboundSync writes each event as a plain-text Note on the matching Contact.
EmailBison connects to HighLevel through OutboundSync. Campaign and manual sends, opens, replies, bounces, unsubscribes, interested leads, automated-reply flags, and tag changes are written as plain-text Notes on the matching HighLevel Contact in one authorized sub-account. Contacts are matched on email and created when missing.
| Status | Beta (HighLevel is a one-way beta CRM) |
|---|---|
| Channels | |
| Direction | One-way, EmailBison → HighLevel |
| HighLevel records | Contacts in one sub-account (Location) |
| Block lists | Not available for this pairing |
| EmailBison plan | Any plan |
| Setup | Guided: Location OAuth in-app, then source setup with the OutboundSync team |
EmailBison is popular with agencies running big cold email programs, and HighLevel is where many of their clients live. OutboundSync connects the two at the sub-account level. Each client's HighLevel receives only the EmailBison activity from the source wired to it, as readable Notes on their own Contacts.
Clients care about replies, not send counts. Because EmailBison flags automated replies and marks interested leads, those signals show up in the Notes, and client teams can filter to the Contacts worth calling today instead of reading every out-of-office message.
Every event below arrives in near-real time and lands on the matched HighLevel record. Pick the ones you want per source.
| Event | Channel | Where it lands in HighLevel |
|---|---|---|
| Email sent— Campaign sends and manual sends | Plain-text Note on the Contact | |
| Email opened | Plain-text Note on the Contact | |
| Reply received | Plain-text Note on the Contact | |
| Email bounced | Plain-text Note on the Contact | |
| Lead unsubscribed | Plain-text Note on the Contact | |
| Lead interested | Plain-text Note on the Contact | |
| Automated reply detected— Auto-replies are flagged so they do not count as real replies | Plain-text Note on the Contact | |
| Tag added or removed | Plain-text Note on the Contact |
Event names come from the EmailBison webhooks OutboundSync receives. HighLevel is a one-way beta, so exact event coverage is confirmed during onboarding. See the EmailBison event reference.
Clients filter HighLevel Contacts marked interested by EmailBison and follow up the same day.
Automated-reply flags let client teams skip out-of-office messages.
Each EmailBison touch sits on the Contact, so reporting starts in the CRM.
The options teams weigh before they commit a production sync.
| Option | What it does | Trade-off |
|---|---|---|
| Zapier, Make, or n8nCompare integration platforms | Catch EmailBison webhooks and write each event to HighLevel with a workflow you build. | Every event type, retry, and field change is a workflow you maintain, billed per task or step. |
| Custom buildBuild vs buy | Write your own service against the EmailBison and HighLevel APIs. | You own matching, deduplication, API limits, and every upstream schema change. |
| OutboundSync | Pre-built email activity sync into HighLevel Contacts. | One-way beta with guided onboarding. Lighter configuration than HubSpot or Salesforce today. |
Authorize the HighLevel sub-account (Location) from CRM Settings in OutboundSync with the same email you use to log in.
Add your EmailBison API key in OutboundSync, then paste the source's webhook URL into EmailBison.
Select EmailBison when you create the HighLevel source, and confirm how contacts are matched.
Trigger one EmailBison event and confirm it on a real HighLevel Contact.
Launch with the OutboundSync team watching the first production events in HighLevel.
Any plan
OutboundSync works with every EmailBison plan. The webhook and API features it relies on are included on all of them.
HighLevel is a one-way beta. There is no HighLevel plan gate on our side; onboarding runs with the OutboundSync team.
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TapcheckTutorials, case studies, and updates related to EmailBison.
EmailBison is a deliverability-first cold email platform for top agencies and GTM teams. See how it syncs into HubSpot or Salesforce via OutboundSync.
Jason Ma
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A quick walkthrough with your own stack. Setup takes minutes, with no long-term contract.
