Smartlead
Cold email outreach platform with unlimited mailboxes and premium deliverability
Founded
2022
Starting Price
$39
Category
General
Last updated February 15, 2026
About Smartlead
Smartlead is a cold email infrastructure platform purpose-built for high-volume outbound outreach. It lets SDR teams connect unlimited email accounts, run automated warm-ups with ESP-matched infrastructure, and manage all replies from a unified inbox. With features like dynamic sender rotation, conditional subsequences based on prospect behavior, and multichannel outreach across email, LinkedIn, SMS, and WhatsApp, Smartlead helps sales teams scale cold outreach without sacrificing deliverability. Trusted by 87,000+ businesses, it is particularly strong for agencies and B2B sales teams running large-scale prospecting campaigns.
Pros & Cons
Pros
- Unlimited email accounts and warm-up included in every plan, allowing SDR teams to scale sending volume without per-mailbox fees
- ESP-matched warm-up infrastructure (Gmail-to-Gmail, Outlook-to-Outlook) builds sender reputation faster and more reliably than generic warm-up tools
- Conditional subsequences enable intent-based follow-ups that adapt messaging based on actual prospect behavior, boosting reply rates
- Unlimited team seats at no extra cost means entire SDR teams can collaborate without per-user pricing penalties
- Unified inbox with AI reply categorization saves hours of manual reply sorting and ensures hot leads get immediate attention
Key Features
Unlimited Mailboxes & Warm-Up
Connect unlimited email accounts with automated warm-up using a 3M+ account network with ESP matching (Gmail-to-Gmail, Outlook-to-Outlook) to build sender reputation 15-20% faster than generic warm-up
Dynamic Sender Rotation
Auto-rotate sending across mailboxes with dynamic IP rotation per campaign, distributing volume to protect deliverability and avoid spam triggers
Conditional Subsequences
Create behavioral branching in sequences based on prospect actions like opens, clicks, and reply timing, delivering different follow-ups to engaged vs. unresponsive leads
Unified Inbox (Unibox)
Consolidate replies from all connected email accounts, channels, and campaigns into one centralized inbox with tagging, filtering, and webhook automation
Multichannel Outreach
Build sequences that combine email, LinkedIn, SMS, WhatsApp, and Twitter in unified workflows to engage prospects across their preferred channels
AI Email Personalization
ChatGPT API integration for generating personalized email copy, Spintax support for message variation, and SmartAI Bot training for persona-specific writing
Pricing
Basic
$39/month
- 2,000 active leads
- 6,000 email sends per month
- Unlimited email accounts
- Unlimited email warm-up
- 2,000 email verifications
Best For
High-Volume SDR Cold Outreach
Scale outbound email campaigns across dozens of mailboxes with automated rotation and warm-up, enabling SDR teams to send thousands of personalized cold emails daily while maintaining deliverability
Agency Client Management
Run cold email campaigns for multiple clients with white-labeled dashboards, dedicated infrastructure per client, and centralized management from a single Smartlead account
Multichannel Sales Sequences
Combine email, LinkedIn, SMS, and WhatsApp touchpoints in unified sequences to reach prospects across multiple channels and increase response rates
Email Deliverability Optimization
Use ESP-matched warm-up, SPF/DMARC checkers, blacklist monitoring, and dynamic IP rotation to diagnose and fix deliverability issues before they impact pipeline
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