Partner spotlight: Lemlist
Lemlist is a multichannel sales outreach platform founded in 2018 in Paris. See how it connects to OutboundSync to sync activity into your CRM.
Jason Ma
Lemlist → HubSpot
Lemlist + HubSpot integration
Lemlist runs email and social steps in one campaign. OutboundSync puts both on the HubSpot Contact and pushes your HubSpot lists back to Lemlist as Unsubscribe entries.
LiveTwo-way syncEmail and social
Lemlist + HubSpot at a glance
Yes, Lemlist integrates with HubSpot through OutboundSync. Email sends, opens, clicks, replies, bounces, and unsubscribes, plus connection requests, social messages, voice notes, and profile views, are written to the matching HubSpot Contact as timeline events. Suppression runs the other way: HubSpot lists push into Lemlist's Unsubscribe list, by email and domain or by social profile URL.
| Status | Live |
|---|---|
| Channels | Email and social |
| Direction | Activity Lemlist → HubSpot; block lists HubSpot → Lemlist |
| HubSpot records | Contacts, with optional Company association |
| Block lists | Yes, from HubSpot lists |
| Lemlist plan | Needs webhook access |
| Setup | Self-serve: install the app from the HubSpot App Marketplace |
A Lemlist campaign might view a profile, send a connection request, and follow up by email two days later. HubSpot usually sees none of it. OutboundSync logs each step on the Contact as a timeline event, so a rep can scroll one record and see exactly how the prospect was worked before they replied.
HubSpot can also tell Lemlist who to leave alone. Build an active list in HubSpot, such as customers, open deals, or anyone marked Do Not Contact, and OutboundSync pushes it to Lemlist as Unsubscribe entries. Pick the Email channel to block addresses and whole domains, or the Social channel to block profile URLs. The push is additive, so leaving the list doesn't remove anyone from Lemlist.
What syncs from Lemlist to HubSpot
Every event below arrives in near-real time and lands on the matched HubSpot record. Pick the ones you want per source.
| Event | Channel | Where it lands in HubSpot |
|---|---|---|
| Email sent | Email timeline event on the Contact | |
| Email opened | Email timeline event on the Contact | |
| Link clicked | Email timeline event on the Contact | |
| Reply received | Email timeline event on the Contact, with the reply text | |
| Email bounced | Email timeline event on the Contact | |
| Lead unsubscribed | Email timeline event on the Contact | |
| Lead category updated— Interested and Not Interested, from email and social | Timeline event plus OutboundSync Contact properties | |
| Connection request sent | Social | Social timeline event, plus a Communications record when the event has message text |
| Connection request accepted | Social | Social timeline event, plus a Communications record when the event has message text |
| Social message sent— Includes voice notes | Social | Social timeline event, plus a Communications record when the event has message text |
| Social reply received | Social | Social timeline event plus a Communications record with the message text |
| Profile viewed | Social | Social timeline event, plus a Communications record when the event has message text |
Event names come from the Lemlist webhooks OutboundSync receives. See the Lemlist event reference.
What teams do with Lemlist + HubSpot
Suppress customers automatically
Keep an active HubSpot list of customers in Lemlist Unsubscribe so campaigns skip them.
Workflow on interested leads
Start a HubSpot workflow when Lemlist marks a lead Interested, from email or social.
Find warm Contacts
Report on Contacts who opened Lemlist emails or accepted a connection request but haven't replied.
Ways to connect Lemlist and HubSpot
The options teams weigh before they commit a production sync.
| Option | What it does | Trade-off |
|---|---|---|
| Zapier, Make, or n8nCompare integration platforms | Catch Lemlist webhooks and write each event to HubSpot 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 Lemlist and HubSpot APIs. | You own matching, deduplication, API limits, and every upstream schema change. |
| OutboundSync | Pre-built email and social activity sync into HubSpot Contacts, with HubSpot lists pushed back as block lists. | Self-serve setup, searchable event logs, and support from the team that maintains the connector. |
How to set up Lemlist + HubSpot
Step 1: Install the HubSpot app
A Super Admin installs OutboundSync from the HubSpot App Marketplace and approves the OAuth scopes.
Step 2: Connect Lemlist
Add your Lemlist API key in OutboundSync, then paste the source's webhook URL into Lemlist.
Step 3: Choose events and properties
Pick which Lemlist events to log as timeline events and which OutboundSync Contact properties to write.
Step 4: Add a block list
Point a HubSpot list of customers, open deals, or do-not-contact records at Lemlist so they never get cold outreach.
Step 5: Send a test event
Trigger one Lemlist event and confirm it on a real Contact.
Step 6: Go live
Turn on the source and start building HubSpot workflows, active lists, and custom reports on real Lemlist data.
Plan requirements
Lemlist plan
Needs webhook access
OutboundSync receives Lemlist activity through webhooks. Confirm your Lemlist plan includes webhook access, or ask us to check during setup.
HubSpot
OutboundSync works on every HubSpot tier with no feature gating. Your tier decides what you can build on the synced data.
Which HubSpot tier you need
| Tier | Fit | What it adds |
|---|---|---|
| Free | Reply and CRM management for up to 1,000 contacts. |
|
| Starter | CRM hygiene with minimal automation, no reporting. |
|
| ProfessionalMost common | Scaling CRM full automation, light reporting. |
|
| Enterprise | All-in-one CRM system of record and system of action. |
|
Related integrations and guides
Lemlist with other CRMs
Other outbound tools for HubSpot
Millions of activities synced every month
David
Stord
Freckle
Factorial
Cerby
HygraphLemlist + HubSpot FAQ
What Lemlist activity does OutboundSync sync to HubSpot?
Email sent, email opened, link clicked, reply received, email bounced, lead unsubscribed, lead category updated, connection request sent, connection request accepted, social message sent, social reply received, and profile viewed.Which HubSpot records does it write to?
OutboundSync matches or creates HubSpot Contacts. Lemlist events land as email timeline event on the Contact; or email timeline event on the Contact, with the reply text; or timeline event plus OutboundSync Contact properties; or social timeline event, plus a Communications record when the event has message text; or social timeline event plus a Communications record with the message text. See the HubSpot data model docs for details.Does OutboundSync push HubSpot lists to Lemlist for both email and social?
Yes. Each block list picks a channel. Email pushes addresses and @-prefixed domains to Lemlist's Unsubscribe list, and Social pushes profile URLs. Create one list per channel if you want both.Is the integration one-way or two-way?
Activity flows one way, from Lemlist into HubSpot. The only write-back is block lists: HubSpot lists you choose are pushed to Lemlist so those records are suppressed.Do I need admin access to set it up?
A HubSpot Super Admin installs the OutboundSync app and keeps it authorized.Which Lemlist plan do I need?
OutboundSync receives Lemlist activity through webhooks. Confirm your Lemlist plan includes webhook access, or ask us to check during setup.How is Lemlist + HubSpot priced?
OutboundSync bills on sent messages per month. Replies, opens, clicks, and lead-category updates are not billed. Plan details are on the pricing page.Can I do this with Zapier, Make, or n8n?
Yes, for lightweight automation. Zapier, Make, and n8n are good for prototypes and simple routing, but they need ongoing maintenance and bill by task or step. OutboundSync is pre-built for outbound CRM sync, keeps searchable event logs beyond 30 days, and prices by outbound volume.What breaks first when this scales?
Data quality and reliability break first: duplicate events, retries, out-of-order webhooks, and bursts during big sends. OutboundSync handles idempotency, timing buffers, and queue recovery, and flags suspicious or mismapped payloads instead of writing them.
Lemlist resources
Tutorials, case studies, and updates related to Lemlist.
Lemlist integration now available
OutboundSync now supports beta one-way sync of Lemlist email and social activity into Attio, Close, HighLevel, HubSpot, Pipedrive, and Salesforce.
Harris Kenny
See Lemlist activity in HubSpot
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