Scale your B2B outreach with smart scheduling, multi-account rotation, and AI-crafted sequences. Hit 10%+ reply rates, not spam folders.
Trusted by outreach teams at
Built for B2B sales teams, SDRs, and growth agencies who need high deliverability cold email software with automated follow-up sequences, multi-inbox rotation, and AI-powered personalization — all in one platform.
Launch automated cold email drip campaigns that convert. Our AI email sequence builder crafts multi-step follow-up campaigns using proven cold outreach frameworks — AIDA, PAS, and custom templates. Set day-gap delays between each follow-up, and let the engine handle the rest. With automated email follow-up software, you stay top-of-mind without lifting a finger.
Connect unlimited SMTP accounts and Google Workspace / Outlook inboxes. Our multi-account email rotation software automatically distributes your cold outreach across all connected inboxes using round-robin logic — keeping each inbox's daily send volume within safe limits. Never get flagged as spam again with our built-in email deliverability tools.
Our cold email scheduling software automatically detects each prospect's local timezone from their LinkedIn profile, company domain, or IP geolocation. Emails land at 9:15 AM their time — not 3 AM — driving significantly higher open and reply rates for your B2B email outreach campaigns.
Generate AI-personalized cold emails that sound hand-written. Our GPT-powered copywriter crafts subject lines with 40%+ open rates, writes compelling intros using LinkedIn data, and generates full email sequences. The best cold email personalization tool for SDRs who need to scale without sacrificing quality.
Every follow-up email is sent as a threaded email reply inside the original conversation — not a new email. We set the In-Reply-To and Message-ID headers correctly so your sequences appear as a continuous conversation to prospects. The #1 factor separating great cold email tools from average ones.
Import thousands of B2B sales leads in seconds from CSV files, Google Docs, or Google Sheets. Our AI lead extraction engine parses unstructured data — LinkedIn URLs, spreadsheet notes, even plain text — and automatically structures it into clean, enriched prospect records ready for outreach.
Before you send a single email, Sendro validates your email deliverability setup — checking SPF records, DKIM signatures, DMARC policies, and blacklist status. Our spam score tester analyzes your copy for spam-trigger words and offers rewrites to ensure maximum inbox placement rate across Gmail, Outlook, and Yahoo.
Track every metric that matters for your cold email campaigns: open rate, click rate, reply rate, bounce rate, and conversion rate — all updated in real time. Identify which sequences, subject lines, and sending times drive the highest reply rates with our built-in email campaign analytics dashboard.
Organize thousands of B2B prospects into smart folders and campaign pipelines. Filter leads by status (Pending, Sent, Done, Failed), industry, or sequence step. Our lightweight built-in lead management CRM keeps your outreach organized without needing an external tool like HubSpot or Salesforce.
New SMTP account? Our email warmup software gradually increases your sending volume over 2–4 weeks while automating engagement signals that train Gmail and Outlook to trust your domain. Protect your sender reputation before launching high-volume cold outreach campaigns. No more cold starts burning new domains.
Every Sendro user gets a unique referral link. Share it with other sales teams, SDRs, and growth agencies — when they sign up, you both earn +100 bonus lead credits instantly. Our built-in SaaS referral program turns your user base into a growth engine, driving word-of-mouth signups from the outbound sales community.
Add your sending accounts. We validate DNS, check SPF/DKIM, and verify deliverability before you send a single email.
Upload CSV, connect Google Sheets, or add leads manually. Our AI auto-detects timezones and enriches every profile.
Write your drip sequence or let AI generate it. Set delays, personalize with variables, and preview before sending.
Hit start. We handle staggered sending, account rotation, daily limits, and crash recovery — you watch replies roll in.
No contracts. No hidden fees. Start free — upgrade only when you need more cold email sending capacity, AI credits, or team seats. Cancel anytime.
Test the platform risk-free. No card needed.
No credit card required
For solo founders & SDRs scaling their first pipeline.
Billed monthly · Cancel anytime
For growing sales teams hitting quota with cold outreach.
Billed monthly · Cancel anytime
For agencies running multi-client campaigns at scale.
Billed monthly · Cancel anytime
| Feature | Free | Starter $39/mo |
Pro $89/mo |
Scale $199/mo |
|---|---|---|---|---|
| 📧 Sending Limits | ||||
| Lead credits per month | 50 | 1,500 | 10,000 | 50,000 |
| Sending inboxes (SMTP) | 1 | 3 | 10 | Unlimited |
| Drip sequences | 2 | 5 | Unlimited | Unlimited |
| 🤖 AI & Automation | ||||
| AI sequence generator | ✕ | ✕ | ✓ | ✓ |
| Timezone auto-detection | ✕ | ✓ | ✓ | ✓ |
| Smart send scheduling | ✕ | ✓ | ✓ | ✓ |
| Priority stagger dispatch | ✕ | ✕ | ✓ | ✓ |
| 📬 Deliverability | ||||
| Email warmup | ✕ | ✕ | ✓ | Dedicated IP |
| SPF/DKIM/DMARC check | ✓ | ✓ | ✓ | ✓ |
| Multi-inbox rotation | ✕ | ✓ | ✓ | ✓ |
| Bounce detection & suppression | ✓ | ✓ | ✓ | ✓ |
| 📊 Analytics & Reporting | ||||
| Open & reply tracking | ✓ | ✓ | ✓ | ✓ |
| A/B split testing | ✕ | ✕ | ✓ | ✓ |
| Advanced campaign reports | ✕ | ✕ | ✓ | ✓ |
| 🏢 Team & Enterprise | ||||
| Team seats | 1 | 1 | 3 | Unlimited |
| White-label branding | ✕ | ✕ | ✕ | ✓ |
| API access + webhooks | ✕ | ✕ | ✕ | ✓ |
| Priority support | ✕ | ✕ | ✕ | ✓ |
| Referral bonus credits | ✓ | ✓ | ✓ | ✓ |
"We switched from Instantly and our reply rate jumped from 3.2% to 11.8% in the first month. The smart scheduling alone is worth 10x the price."
"Finally a tool that lets me manage all my client campaigns from one dashboard. The multi-account rotation is bulletproof — zero deliverability issues."
"The AI email writer is scarily good. It writes personalized cold emails that actually sound human. My team saves 4 hours a day on copywriting."
We spent years running cold email campaigns for B2B companies and got tired of clunky tools that promised deliverability but delivered spam folders. So we built Sendro — the platform we always wished existed.
Our mission is simple: make B2B outreach accessible to everyone — from solo founders sending their first 100 emails to agencies managing millions of sends across dozens of client accounts.
Launch your first campaign in under 5 minutes. No 3-week onboarding.
Every feature is designed around one thing: landing in the Primary tab.
We ship new features every week based on what our users actually need.
Join 2,400+ teams already using Sendro. Start free — no credit card required.
