Reputation-first cold email platform

Cold emails that actually get delivered

Multi-step campaigns, one-shot broadcasts, domain verification, mailbox warm-up, and real-time tracking — all designed to protect your sender reputation.

No credit card required · Free forever for small teams

app.nimu.io/campaigns
Steps5 total
Initial outreach
Wait 3 days
Follow-up #1
Wait 5 days
Break-up email
Email StepSent to 247 leads · 62% open rate
Quick question about {{company}}

Hi {{firstName}},

I noticed {{company}} has been scaling — congrats on the growth.

We help teams like yours increase reply rates with reputation-safe sending.

Worth a quick call?

Built for deliverability from day one

99.2%

Avg. delivery rate

100%

SPF/DKIM/DMARC

3x

Higher reply rates

Leads supported

Why Nimu

Outreach built on deliverability

Every feature is designed around legitimate deliverability best practices. Domain authentication, reputation management, and compliance-first unsubscribe handling — so your emails land where they belong.

Domain-first authentication

SPF, DKIM, and DMARC verification built into the onboarding flow. Know your sending reputation before you hit send.

Real-time monitoring

Track delivery rates, bounces, and complaints. Automatic sending pauses when thresholds are exceeded.

Smart rate limiting

Automated warm-up schedules and per-mailbox sending caps protect your sender score.

Core Platform

Three pillars of reliable outreach

Everything you need to send cold emails that actually get delivered.

Multi-step sequences

Campaign Builder

Visual step-by-step sequence editor with template variables, wait periods, and real-time preview. Build multi-touch email campaigns in minutes.

Automatic warm-up

Smart Sending Engine

Per-mailbox rate limiting, warm-up ramp schedules, send-window enforcement, and automatic stop-on-bounce. Every email sent at the right time.

SPF/DKIM/DMARC

Deliverability Suite

Domain authentication wizard, DNS record verification, real-time bounce and complaint monitoring, and one-click compliance unsubscribe.

Q1 Enterprise Outreach

5 steps · 247 leads enrolled

active
62%open rate
8.7%reply rate

Initial outreach

247 sent · 62% opened

Wait 3 days

completed

Follow-up #1

189 sent · 58% opened

Wait 5 days

active

Break-up email

pending

Campaign Builder

Build sequences that convert

Design multi-step email sequences with a visual timeline editor. Add wait steps, personalize with template variables, and preview exactly what each lead will receive.

  • Visual step timeline with status tracking
  • Template variables: {{firstName}}, {{company}}, and more
  • Real-time open and reply rate analytics
  • Automatic stop on reply, bounce, or unsubscribe
Deliverability Dashboard

Know your sender reputation

Real-time visibility into delivery rates, bounces, and domain health — all in one place.

Delivery Rate

0%

+1.2% vs last week

Open Rate

0%

+3.8% vs last week

Reply Rate

0%

+2.1% vs last week

Bounce Rate

0%

-0.5% vs last week

Domain Authentication Status

2/3 Passing

SPF Record

v=spf1 include:_spf.google.com ~all

DKIM Signing

Selector: google · RSA 2048-bit

DMARC Policy

v=DMARC1; p=none — consider p=quarantine

We guide you through fixing any authentication issues before you send.
How It Works

Up and running in minutes

Three simple steps to start sending reputation-safe cold emails.

01

Connect your domain

Add your sending domain and follow our step-by-step wizard to configure SPF, DKIM, and DMARC. We verify everything before you send a single email.

02

Build your campaign

Create multi-step email sequences with our visual builder. Add personalization variables, set wait periods, and preview each message before launch.

03

Launch and monitor

Enroll leads and let the smart sending engine handle timing, rate limiting, and warm-up. Monitor delivery metrics in real-time and pause anytime.

Ready to land in the inbox?

Start sending reputation-safe cold emails today.

No credit card requiredFree forever for small teams5-minute setup