Last updated March 24, 2026
Instantly.ai
StartupAI-powered cold email platform with unlimited email accounts, warmup, and deliverability optimization
Best for: Agencies and sales teams running high-volume cold email campaigns who need unlimited sending accounts and AI warmup
Target Audience
Agencies, SDR teams, outbound sales
Overview
Instantly.ai is an AI-powered cold email platform that offers unlimited email account connections, AI email warmup, smart sending rotation, and a 160M+ lead database. It is one of the most popular tools for high-volume outbound email campaigns.
Key Features
Integrations
Pros
- Unlimited email accounts
- Excellent deliverability tools
- Very affordable
- Built-in lead database
Cons
- Email only — no calling
- Lead data quality varies
- Can be complex for beginners
- Deliverability requires ongoing management
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