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 → Close
High-volume EmailBison campaigns produce a lot of replies, and not all of them are human. OutboundSync logs the activity on Close Leads with automated replies flagged.
EmailBison works with Close through OutboundSync. Campaign and manual sends, opens, replies, bounces, unsubscribes, interested leads, automated-reply flags, and tag changes from EmailBison are logged as activity on the matching Close Lead. The sync is one-way, EmailBison into Close, with onboarding handled by the OutboundSync team.
| Status | Beta (Close is a one-way beta CRM) |
|---|---|
| Channels | |
| Direction | One-way, EmailBison → Close |
| Close records | Leads |
| Block lists | Not available for this pairing |
| EmailBison plan | Any plan |
| Setup | Guided: the OutboundSync team runs onboarding |
At EmailBison volumes, a rep's biggest problem is triage. Hundreds of replies can arrive in a day, and a good share are out-of-office messages. Because EmailBison flags those automatically and OutboundSync passes the flag into Close, reps can build views that surface human replies and skip the rest.
The rest of the campaign history follows. Each Close Lead shows which EmailBison campaign reached the prospect, when they opened, and how they responded, so the first call or email from Close builds on the sequence instead of starting over.
Every event below arrives in near-real time and lands on the matched Close record. Pick the ones you want per source.
| Event | Channel | Where it lands in Close |
|---|---|---|
| Email sent— Campaign sends and manual sends | Activity on the Close Lead | |
| Email opened | Activity on the Close Lead | |
| Reply received | Activity on the Close Lead | |
| Email bounced | Activity on the Close Lead | |
| Lead unsubscribed | Activity on the Close Lead | |
| Lead interested | Activity on the Close Lead | |
| Automated reply detected— Auto-replies are flagged so they do not count as real replies | Activity on the Close Lead | |
| Tag added or removed | Activity on the Close Lead |
Event names come from the EmailBison webhooks OutboundSync receives. Close is a one-way beta, so exact event coverage is confirmed during onboarding. See the EmailBison event reference.
Build a Smart View that leaves out automated replies so reps work real responses first.
The EmailBison interested event marks the Lead, making hot prospects easy to find.
Reps see every EmailBison touch on the Lead before they pick up the phone.
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 Close 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 Close APIs. | You own matching, deduplication, API limits, and every upstream schema change. |
| OutboundSync | Pre-built email activity sync into Close Leads. | One-way beta with guided onboarding. Lighter configuration than HubSpot or Salesforce today. |
Authorize OutboundSync from the Close App Marketplace. The OutboundSync team adds Close as a Connected Account with you.
Add your EmailBison API key in OutboundSync, then paste the source's webhook URL into EmailBison.
Select EmailBison when you create the Close source, and confirm how contacts are matched.
Trigger one EmailBison event and confirm it on a real Close Lead.
Launch with the OutboundSync team watching the first production events in Close.
Any plan
OutboundSync works with every EmailBison plan. The webhook and API features it relies on are included on all of them.
Close is a one-way beta. There is no Close 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.
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A quick walkthrough with your own stack. Setup takes minutes, with no long-term contract.
