The cheapest way to use Warmup Inbox costs $180 a year. That buys one Basic inbox. This article cuts through pricing page ambiguity for 2026. You will see what you actually pay for Warmup Inbox.
Warmup Inbox tiers in 2026: a quick comparison
Basic tier: the solo sender's choice
What the Basic tier offers
The Basic tier costs $15 per inbox per month. This is billed annually at $180 per inbox. It suits a solo sender with one or two cold outreach mailboxes. You get basic warmup features. It includes deliverability scoring and blacklist monitoring.
Pro tier: for growing teams
What the Pro tier offers
The Pro tier costs $49 per inbox per month. This is billed annually at $588 per inbox. It adds more advanced features. This tier is for small teams. They manage a few mailboxes and need better monitoring.
Max tier: when deliverability is critical
What the Max tier offers
The Max tier costs $79 per inbox per month. This is billed annually at $948 per inbox. It targets users where deliverability is a core business function. You choose this for maximum deliverability control.
Custom tier: agencies and large operations
What the Custom tier offers
The Custom tier has no published pricing. It requires a minimum of 15 inboxes. This tier is for agencies or large sales teams. They manage many mailboxes.
What the sticker price leaves out in 2026
Hidden costs and traps
Common omissions
Warmup only: most buyers pay a second vendor for seed-list testing or spam-filter diagnostics. Blacklist and reputation alerts flag issues but offer little guidance on the fix.
Cost at scale: 1, 5, and 20 mailboxes
Per-inbox pricing compounds. Here is the actual annual cost for different mailbox quantities across tiers.
Calculate your spend
Claude / GPT-4Calculate the annual cost for N mailboxes on Warmup Inbox's [Basic/Pro/Max] tier, given the per-inbox monthly price.
Your key questions about Warmup Inbox pricing
Does Warmup Inbox offer a free trial?
Warmup Inbox does not publicly advertise a free trial for any of its paid tiers.
Are there discounts for annual billing?
Yes, the published per-inbox monthly prices are only available with annual billing.
Can I pay monthly?
The pricing page only shows annual billing options for Basic, Pro, and Max tiers.
What is the minimum commitment?
The Basic, Pro, and Max tiers have no minimum commitment beyond one inbox, billed annually.
