Instantly.ai is a cold email platform built for sending outreach at scale while protecting deliverability. It combines unlimited sending accounts, automatic email warmup and a large B2B lead database, which makes it popular with agencies, founders and sales teams doing outbound prospecting.
Last verified: October 14, 2026. Prices and features change often, so always confirm on the official website before you buy.
What is Instantly.ai?
Instantly lets you connect many email inboxes, warm them up, and run personalised outreach sequences across all of them from one dashboard. Its lead database of 450M+ B2B contacts means you can find prospects and send campaigns in the same tool.
Key features
Unlimited email accounts
From the Growth plan up, you can connect and warm as many sending accounts as you need from any provider, then rotate sending across them to stay within safe limits.
Unlimited email warmup
Warmup gradually builds the sender reputation of new inboxes so your campaigns are more likely to reach the inbox instead of spam.
B2B lead database
Search 450M+ B2B leads by role, industry and company to build prospect lists without a separate data provider.
Campaigns and unified inbox
Build multi-step sequences with personalisation, then handle every reply in one inbox so no lead slips through.
Instantly.ai pricing
The Growth plan, which includes unlimited email accounts and warmup, starts at $47 per month (about $37.60 per month on annual billing for some plans). Bundles that include lead credits are also available, with about 10% off on annual billing. You can start free with no credit card required.
Pros and cons
Pros
- Unlimited sending accounts and warmup at a flat price
- Large built-in lead database
- Simple campaign builder and unified inbox
Cons
- Built for cold outreach, not newsletters
- Lead credits cost extra
- Cold email must follow anti-spam laws in your target countries
Who should use Instantly.ai?
- B2B founders and sales teams doing outbound
- Lead generation agencies running many client campaigns
- Recruiters and partnership teams contacting prospects at scale
Instantly.ai alternatives
- SmartReach.io: multichannel sequences with email, LinkedIn, calls and WhatsApp.
- ActiveCampaign: for nurturing opted-in leads.
- HubSpot AI: CRM-based prospecting agents.
FAQ
Is Instantly.ai free?
You can start free without a credit card. Paid plans are needed for ongoing campaigns.
Does Instantly.ai include email warmup?
Yes, unlimited warmup is included from the Growth plan.
Is cold emailing legal?
It depends on the country. Rules such as CAN-SPAM in the US and GDPR in the EU apply, so include an opt-out and only contact relevant business addresses.
Verdict
Instantly.ai is one of the most cost-effective tools for scaling cold email, thanks to unlimited accounts and warmup. Use it for outbound prospecting, warm up new inboxes for a couple of weeks before sending, and keep your lists targeted to protect deliverability.
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AI Automation Tools Top 10
Instantly.ai- Unlimited email accounts & warmup
- 450M+ B2B lead database
- Start free, no credit card needed