Built for cold email agencies

Stop the follow-up.
The moment they book.

A prospect books a meeting. Your sequencer doesn't know yet. SendBrake closes that gap — instantly suppressing their entire company domain across all your campaigns before the next email goes out.

Start free trial →See how it works
✓ 5-minute setup
✓ No code required
✓ 14-day free trial
app.sendbrake.com/overview
Acme Agency
4 sequencers connected
Overview
Connections
Bookings
Sequencers
Logs
Settings
Overview
Today
12
This week
84
All time
1,247
Domain
Sequencer
Time
Status
acmecorp.com
instantly
just now
success
globex.io
smartlead
2 min ago
success
globex.io
lemlist
2 min ago
success
initech.com
saleshandy
18 min ago
success
quizoom.com suppressed across 4 sequencers
acmecorp.com blocked in real time
globex.io removed from all campaigns
initech.com domain suppressed instantly
sqwiz.com suppressed across 3 sequencers
techflow.io blocked the moment they booked
quizoom.com suppressed across 4 sequencers
acmecorp.com blocked in real time
globex.io removed from all campaigns
initech.com domain suppressed instantly
sqwiz.com suppressed across 3 sequencers
techflow.io blocked the moment they booked
Works with
Calendly
Cal.com
GoHighLevel
HubSpot
→
Instantly
Smartlead
Lemlist
Saleshandy
Woodpecker
The problem

The gap between your booking tool
and your sequencer is costing you deals.

A prospect books a call. Your campaigns keep running. The result? A follow-up lands hours after they've already agreed to speak with you — making your team look disorganised.

✕ Without SendBrake
1
John from Acme books a call via Calendly
2
Your sequencer has no idea — keeps sending follow-ups to John and his colleagues
3
Sarah from Acme gets an email hours later
4
"We already spoke to someone from your team..." — trust gone, deal at risk
✓ With SendBrake
1
John from Acme books a call via Calendly
2
SendBrake detects the booking in real time and extracts the company domain
3
acmecorp.com is added to blocklists across all connected sequencers in seconds
4
Sarah never gets another email. Meeting goes smoothly. Deal moves forward.
Features

Everything you need.
Nothing you don't.

⚡
Real-time suppression
The moment a booking is confirmed, the domain is blocked. Seconds, not sync cycles.
🌐
Domain-level blocking
If John books, Sarah stops getting emails too — across every campaign, every sequencer, automatically.
🏢
Multi-workspace
Manage suppression across all your clients from one dashboard. Built for agencies running outbound at scale.
📋
Full audit trail
Every suppression logged with domain, sequencer, timestamp and status. Show clients proof you have systems in place.
🔌
Connect once, runs forever
5-minute setup. After that, SendBrake runs silently in the background with zero manual work required.
🚫
No Zapier workarounds
Purpose-built for this exact problem. No fragile Zap chains, no field mapping, no maintenance headaches.
Integrations
Works with your entire stack.
Booking
Calendly
Cal.com
GoHighLevel
HubSpot
Pipedrive
Sequencers
Instantly
Smartlead
Lemlist
Saleshandy
EmailBison
Woodpecker
⚡ More integrations added regularly — request one →
Social proof

Agencies stopped embarrassing their clients.

★★★★★
"We were sending follow-ups to booked prospects for days before someone caught it. SendBrake fixed the whole thing in about 5 minutes. Genuinely wish it existed years ago."
MK
Marcus K.
Founder, OutreachLab Agency
★★★★★
"We manage outbound for 12 clients. The Zapier workaround we had broke constantly. SendBrake just works — every single time — and I don't have to think about it."
SR
Sophie R.
Head of Operations, ScaleFirst
★★★★★
"A client nearly churned after getting follow-ups post-booking. Now I show clients the suppression logs as proof our systems are airtight. It's actually become a selling point."
DW
Daniel W.
CEO, PipeGen Partners
Pricing

Simple pricing. No surprises.

14-day free trial on all plans. No credit card required.

2 months free
Solo
$39
/mo
 
✓ 1 sequencer
✓ 1 booking source
✓ Full audit log
Anchor plan — hits ceiling fast
Start free trial
Launch special — forever
Team
$99
$49
/mo
 
🔒 Lock in this price forever
✓ 3 sequencers
✓ Unlimited booking sources
✓ Full audit log
The real product starts here
Start free trial
Launch special
Agency
$249
$129
/mo
 
🔒 Lock in this price forever
✓ Unlimited sequencers
✓ Unlimited booking sources
✓ Unlimited workspaces
✓ Priority support
✓ Full audit log
Built for multi-client agencies
Start free trial

Cancel or downgrade anytime · No lock-in on subscription

Get started

Connect once. Never follow up on a booked lead again.

5 minutes to set up. Runs silently in the background forever.

Start free trial →Book a demo

No credit card required · 14-day free trial · Cancel anytime