Cold email that
lands in the inbox.

Sequences, warmup, placement tests, and one inbox for every reply. Connect your own mailboxes or buy them in the app. Sign up and start sending today.

Sign upPaid plans from $99/mo. No sales call.
Q4 outbound
Sending
  1. Day 1
    Email · variants A / B
    Question about {{company_name}}
  2. Day 3
    Email · variants A / B / C
    Following up, {{first_name}}
  3. Day 7
    Email · variants A
    Worth a quick look?
96%
Inbox placement
12
Mailboxes warming
38
Replies

Example campaign

1
Day 1 · Email
A
B
C
D
2
Wait 2 Days
3
Day 3 · Email
A
B
4
Wait 3 Days
5
Day 6 · Email
A
B
C
6
Wait 2 Days
7
Day 8 · Email
Sequence Builder

Two Builders. One Engine.

Start simple with linear step sequences — email, wait, email, done. Need more power? Switch to the workflow builder with conditional routing, A/B branching, API nodes, and multi-channel paths. Both run on the same engine.

  • Simple mode: linear steps with A/B/C/D variants per email
  • Workflow mode: If/Switch conditions, API webhooks, multi-channel routing
  • Conditional routing, API webhooks, and CRM integrations in one flow
Email Tools

A/B Test Everything. Personalize at Scale.

Every email step supports A/B/C/D variants, dynamic variables, spintax, and conditional logic. AI Rewrite generates variations instantly. Test different messaging, timing, and personalization to find what works.

  • Up to 4 variants per step — test subjects, bodies, CTAs
  • AI Rewrite generates variations from your original copy
  • Variables + conditionals for deep personalization at scale
Step 1 · Email
Subject
Question about {{company_name}}'s outbound
Body
Hi {{first_name}}, I noticed {{company_name}} is scaling cold outreach. Most teams at that stage lose 20-30% of volume to inbox placement issues. Would it make sense to show you how teams like yours solve this?
Email Tools
AI Rewrite
Generate A/B variations
Auto-Spintax
Add variations automatically
Variables
Insert personalization
Conditionals
If/else template logic
Deliverability

Know why every email lands. Or doesn't.

At scale, “your bounce rate is 4%” tells you nothing useful. SuperSend tells you exactly why each bounce happened, runs placement tests on your real senders (not synthetic health scores), and monitors domain health with one-click fixes.

Placement tests and domain health show you what is happening. Adaptive pacing uses those signals and live SMTP feedback to tune send rate before problems show up in a test.

Explore Deliverability Suite
94%Inbox Rate
AI Bounce Analysis
Bad address
12
Server block
3
Temp failure
7
Placement Tests
GmailInbox
OutlookInbox
YahooInbox
iCloudSpam
Domain Health
SPF
DKIM
DMARC
rDNS
Nadia RourkeInterested2m ago
This looks great - can we jump on a call Thursday?
Graham VossMeeting8m ago
Booked! See you Tuesday at 2pm.
Elena PruittOOO15m ago
I'm out of office until March 20th.
Theo BancroftInterested22m ago
Yes, we're evaluating tools right now. Send me pricing?
Maren HoltMeeting34m ago
Let's schedule something next week. What works?
Super Inbox

One inbox for every sender. Every reply.

When you're sending across hundreds of senders and dozens of subdomains, replies scatter. SuperSend consolidates every reply across every identity into one inbox, AI-categorized and searchable.

Learn About Super Inbox

FAQs

Common questions about SuperSend.

Helpful Resources

Practical breakdowns on infrastructure, deliverability, warmup, and sending cold email at scale.

View all Resources
Sequencing at High Volume: What Changes After the First Campaign
Sequencing

Sequencing at High Volume: What Changes After the First Campaign

After the first cold email campaign works, high-volume sequencing becomes an infrastructure problem: sender capacity, pacing, placement, replies, and how campaigns share the pool.

Enterprise SEG Deliverability at Scale: What Production Data Shows
Deliverability

Enterprise SEG Deliverability at Scale: What Production Data Shows

When you cold email big companies, your mail often hits Proofpoint, Mimecast, or Barracuda before it reaches a person. Here is what gateway acceptance actually looks like at scale.

Cold Email Scale Checklist for RevOps Teams
RevOps

Cold Email Scale Checklist for RevOps Teams

A RevOps cold email scale checklist for teams moving from campaigns to infrastructure: sender capacity, domains, placement, reply routing, CRM handoff, suppressions, API workflows, and reporting.

Cold email that lands.

Sequences, warmup, placement tests, and one inbox for every reply. Plans from $99/mo.

Sign upSee pricing