Instantly
Reviewed by Alexis Morain · Updated July 11, 2026
Instantly sends cold email in volume with unlimited accounts, warmup and rotation for deliverability. American publisher, from 37 $/month.
One of the best-built cold email tools for volume and deliverability, to be handled with method given the practice's risk.
- Unlimited sending accounts and warmup on every plan
- Campaign spreading to protect deliverability
- Cold email at scale is risky, strict legal framework
Instantly is a cold email platform built for sending at scale. Its promise: connect and warm up an unlimited number of sending accounts to spread out volume and protect deliverability, where other tools cap the number of inboxes.
What is Instantly used for?
You connect your sending inboxes, Instantly warms them up automatically to build their reputation, then spreads campaigns across them. You write sequences, test variants and track replies in a unified inbox. A B2B prospect database and AI writing round out the tool. It targets agencies and sales teams at high volume.
Instantly or a multichannel tool?
Against Lemlist, more multichannel, or Waalaxy, focused on LinkedIn, Instantly focuses on high-volume cold email and deliverability. For pure, large-scale email prospecting, it's one of the best-built tools; for multichannel LinkedIn plus email, others are more complete.
What are Instantly's limits?
Cold email at scale remains a risky practice, governed by strict rules (GDPR, anti-spam regulations): handle it with method. The quality of the built-in prospect database is uneven, and the platform, very volume-oriented, suits craft-level, ultra-targeted prospecting less well.
Pros & Cons
- Unlimited sending accounts and warmup on every plan
- Campaign spreading to protect deliverability
- Unified inbox to track replies
- Sequences, variant testing and AI writing
- Cold email at scale is risky, strict legal framework
- Uneven quality of the built-in prospect database
- Not well suited to craft-level, ultra-targeted prospecting
Key features of Instantly
Unlimited accounts
As many sending inboxes as needed
Automatic warmup
Warms up accounts to build their reputation
Unified inbox
All campaign replies in one place
Sequences and testing
Sending scenarios and A/B variants
Instantly pricing
Instantly starts at 37 $/month for the Growth plan billed annually (47 $ monthly, 5,000 emails), moves up to Hypergrowth at 97 $ (100,000 emails) and Light Speed at 358 $ (500,000 emails, dedicated IP rotation). Sending accounts and warmup are unlimited on every plan.
Growth
5,000 emails/month · Unlimited sending accounts · Unlimited warmup
37 $ per month (47 $ monthly)
Hypergrowth
100,000 emails/month · Priority support · Unlimited warmup
97 $ per month
Light Speed
500,000 emails/month · Dedicated IP rotation · Very high volumes
358 $ per month
Pricing verified on July 11, 2026
Try InstantlyWho is Instantly for?
Best for
- Agencies and sales teams doing high-volume cold email
- Pure email prospecting focused on deliverability
- Uses requiring many sending accounts
Not recommended for
- Craft-level, ultra-targeted prospecting
- Integrated multichannel LinkedIn and email approach
Want to try Instantly?
Head to the official site and the current offer.
Frequently asked questions about Instantly
How much does Instantly cost?▼
Instantly or Lemlist?▼
Is cold email legal?▼
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