WarmupInbox uses a per-inbox pricing model split across three paid tiers, plus a custom enterprise option for agencies managing many client domains. This guide breaks down exactly what each tier costs, what you get at each level, and how to figure out which plan actually fits your sending volume before you commit.
Before committing to a paid tier, WarmupInbox’s 7-day free trial lets you test real inbox placement improvement on your own domain with no credit card required.
How WarmupInbox Structures Its Pricing
Unlike some competitors that charge a single flat rate regardless of how many inboxes you connect, WarmupInbox prices per inbox at each of its three tiers, which keeps the entry cost low for a single domain but means the total bill grows in direct proportion to how many accounts you warm at once. Understanding this pricing structure clearly upfront makes it much easier to budget accurately for the months ahead, rather than being caught off guard once a second or third sending domain eventually gets added to the account later on.
WarmupInbox Pricing at a Glance
| Plan | Monthly (per inbox) | Annual (per inbox) | Daily Warmup Emails | Best For |
|---|---|---|---|---|
| Basic | ~$19/mo | $15/mo ($180/yr) | 75 | Single domain, light outreach |
| Pro | ~$59/mo | $49/mo ($588/yr) | 250 | Active outreach, multiple languages |
| Max | ~$99/mo | $79/mo ($948/yr) | 1,000 | High-volume senders, agencies |
Basic Plan: $15/Inbox/Month (Annual)
The Basic tier costs $15 per inbox per month when billed annually, working out to $180 per year per connected inbox, or roughly $19 a month if you pay monthly instead. It includes 75 warmup emails a day per inbox, access to the full 30,000-plus real inbox network, spam and blacklist monitoring, reputation checks, standard API access, and chat support.
This tier fits sellers running outreach from a single domain or a small handful of accounts who do not need the higher daily volume or language warmup features. It is the right starting point if you are testing whether dedicated warmup makes a measurable difference before committing to a higher tier.
Pro Plan: $49/Inbox/Month (Annual)
Pro costs $49 per inbox per month billed annually, or $588 per year per inbox, roughly $59 a month on the monthly billing option. Daily warmup volume increases to 250 emails per inbox, and this tier adds language warmup across twelve languages, custom warmup templates, ESP-specific targeting, scheduled warmup windows, and priority support.
Pro is the plan most sellers running active, ongoing cold outreach for supplier sourcing or B2B prospecting will land on, since the higher daily volume better matches real campaign activity, and language warmup matters if you are pitching international suppliers or buyers outside English-speaking markets.
Max Plan: $79/Inbox/Month (Annual)
Max costs $79 per inbox per month annually, or $948 per year per inbox, around $99 a month billed monthly. It scales daily warmup volume up to 1,000 emails per inbox, and adds unlimited API access, premium support, a technical setup review, and early access to new features.
This tier makes sense for sellers or agencies running high-volume outreach across domains that need to sustain heavier sending activity without reputation degrading, or teams that rely heavily on API access for automated deliverability reporting across many connected accounts.
Enterprise Pricing for Agencies
Custom enterprise pricing becomes available starting at 15 connected inboxes, with additional volume discounts kicking in past 50 inboxes. This is the right path for agencies managing outreach across many client domains, since the standard per-inbox tiers are built around individual sellers rather than agency-scale account management. Reaching out directly for a quote is worthwhile once your inbox count starts climbing into double digits.
Monthly vs Annual Billing
Across every tier, monthly billing runs roughly 20% more than the equivalent annual rate. For a single Basic inbox, that is the difference between $180 a year annually versus roughly $228 a year on the monthly plan, a gap that widens considerably at Pro and Max tiers or across multiple connected inboxes. If you are confident you will keep using the tool past the trial period, annual billing is the more cost-effective choice for most sellers.
The Real Cost Comparison: Per-Inbox Scaling
Because pricing is strictly per inbox with no built-in discount below the enterprise threshold, your total monthly cost scales linearly with every mailbox you add. Five Basic-tier inboxes on annual billing runs $75 a month combined, while five Pro-tier inboxes runs $245 a month. This is worth calculating explicitly before committing, since the sticker price for a single inbox looks modest but the real cost for a small team running outreach from several domains adds up faster than it might first appear.
Compare this total against what alternative platforms charge for a similar number of connected accounts, particularly if you are also paying separately for a cold email sending platform, since some of those tools bundle basic warmup into their existing subscription at no additional per-inbox cost.
What Each Tier Actually Adds, Feature by Feature
Moving from Basic to Pro is primarily about daily volume and language coverage, useful once your outreach moves beyond a single domain sending a modest daily batch. Moving from Pro to Max is more about support responsiveness and API ceiling than core warmup functionality, since the underlying inbox network and monitoring tools are the same across all three paid tiers.
This means most sellers do not need to jump straight to Max to get meaningful deliverability improvement. Basic or Pro covers the core warmup mechanism that actually drives placement results, and Max is really a scale and convenience upgrade rather than a fundamentally different product.
How to Estimate Your Actual Cost Before Committing
Start by counting how many sending domains or inboxes you realistically need warmed at once, not how many you might eventually add. Multiply that count by the annual per-inbox rate at the tier that matches your expected daily send volume, then compare that total against your current cold outreach budget as a whole, including your sending platform subscription, list building tools, and any verification service you already pay for.
If dedicated warmup pushes your total outreach stack cost meaningfully higher than what your current reply and conversion rates justify, it is worth testing the free trial first and measuring actual placement improvement before locking into a full year of paid tier commitment.
Hidden Costs to Watch For
The per-inbox model means costs are transparent but easy to underestimate once you start adding accounts for a growing team or multiple business entities. There are no setup fees or hidden charges beyond the published per-inbox rate, but it is worth checking whether your specific use case, agency management of client domains in particular, actually needs the enterprise tier rather than stacking multiple standard subscriptions, since the enterprise volume discount can meaningfully undercut paying full per-inbox rate across a dozen or more accounts.
Refunds and Cancellation
WarmupInbox allows cancellation at any time, and the 7-day free trial requires no credit card, which removes the usual risk of forgetting to cancel before a trial period converts into a paid charge. Check the current terms directly on the pricing page before committing to an annual plan, since refund policies on annual commitments can vary and are worth confirming ahead of payment rather than after.
What Independent Pricing Comparisons Show
Third-party breakdowns on G2 generally confirm the published tier structure. The same holds true on Capterra, where user reviews tend to note the per-inbox model as straightforward to understand but less favorable at scale compared to flat-rate competitors.
Checking Trustpilot directly before committing to an annual plan is worth doing, since aggregated reviews surface billing or support experiences that a pricing page alone will not show.
These third-party sources are useful specifically because pricing pages change over time and vendor marketing tends to emphasize the lowest advertised rate rather than the realistic cost once you factor in your actual inbox count and billing cycle. Cross-checking the current published rate against what other users report paying is a quick way to confirm you are working from accurate numbers before committing budget.
Switching Tiers as Your Outreach Scales
Most sellers do not start at the tier they eventually settle on. It is common to begin on Basic while testing whether dedicated warmup produces a measurable placement improvement, then upgrade to Pro once outreach volume increases and the higher daily warmup ceiling becomes necessary to keep pace with real campaign sending. Upgrading mid-cycle is usually straightforward, with billing pro-rated for the remainder of the current period.
Downgrading works the same way in reverse, useful if a seasonal outreach push winds down and daily send volume drops back to a level the lower tier comfortably supports. Reviewing your actual usage every quarter, rather than locking into a tier indefinitely, is a reasonable habit for keeping this line item aligned with your real sending activity rather than paying for capacity you are not using.
When the Enterprise Tier Actually Pays Off
The math on enterprise pricing tends to favor agencies and larger operations once you cross roughly 15 to 20 connected inboxes, the point where the volume discount starts meaningfully undercutting standard per-inbox rates. Below that threshold, standard tier pricing is usually simpler to manage and not meaningfully more expensive in practice, so there is little reason to request an enterprise quote until your inbox count is genuinely approaching that range.
If you are managing outreach for several distinct business entities rather than a single agency with many clients, it is worth calculating whether consolidating under one enterprise account actually saves money compared to running separate standard subscriptions per entity, since the answer depends heavily on your specific inbox count and how the discount tiers are structured at the volume you actually need.
How Pricing Fits Into Your Broader Outreach Budget
Email warmup is one line item in a larger outreach infrastructure, alongside your sending platform, list verification tool, and the domains themselves. If you are sourcing suppliers through cold outreach at meaningful volume, the warmup line item is usually small relative to the time and money already invested in building a prospect list, which makes the marginal cost of protecting deliverability worth budgeting for rather than skipping.
For sellers newer to high-ticket dropshipping, it is worth building this cost into your outreach plan from the start rather than adding it reactively after a domain’s reputation has already taken damage, since repairing a burned domain typically takes longer and costs more in lost outreach time than warming a fresh one correctly from day one.
Budgeting Across Multiple Business Entities
If you have not yet handled business formation, it is worth setting up your sending domains and billing under your proper business entity before your inbox count grows, since separating personal and business expenses across a growing number of paid warmup subscriptions gets considerably messier the longer it is put off.
This matters specifically for the per-inbox pricing model, since a business running outreach for multiple product lines or store entities under one owner may end up paying for warmup separately across accounts that could otherwise be consolidated under one enterprise agreement once the total inbox count justifies it.
Comparing Cost Against Bundled Alternatives
Some cold email sending platforms include basic warmup as part of their existing subscription rather than charging a separate per-inbox fee. Whether that changes your calculation depends on how much you value the deeper monitoring, larger inbox network, and dedicated dashboard a purpose-built tool like WarmupInbox provides over a simpler bundled feature. Our WarmupInbox alternatives guide breaks down several of these bundled options with their actual pricing so you can compare total stack cost directly.
How Warmup Volume Should Match Your Actual Send Volume
A common mistake is choosing a tier based on budget alone rather than matching the daily warmup email count to actual outreach volume. If you are sending 200 cold emails a day from a domain warmed at Basic’s 75-email ceiling, the warmup activity is not keeping pace with real sending, and reputation can still degrade even with a paid plan active. Matching daily warmup volume to at least roughly your real daily send volume, and ideally somewhat above it, gives the underlying mechanism room to actually protect your reputation rather than trailing behind it.
This is the practical reason Pro tends to be the better fit once outreach becomes a consistent, ongoing activity rather than occasional test batches, since 250 daily warmup emails comfortably covers the sending volume most solo sellers and small teams realistically run without needing to jump straight to Max.
Planning Ahead for Seasonal Outreach Pushes
If your outreach volume spikes seasonally, a supplier sourcing push ahead of a new product launch, for example, it is worth upgrading tiers a week or two before the planned send increase rather than the same day, since warmup benefits from a short ramp period at the new volume before real campaign sending begins. Planning this timing in advance avoids the situation where a sudden jump in both warmup and real send volume happens simultaneously, which providers can flag as suspicious activity regardless of how legitimate the underlying campaign actually is.
Frequently Asked Questions
What is the cheapest WarmupInbox plan?
Basic is the cheapest paid tier at $15 per inbox per month billed annually, covering 75 warmup emails a day per connected inbox.
Is there a free trial?
Yes, a 7-day free trial is available with no credit card required, giving you enough time to test placement improvement before paying anything.
Does WarmupInbox offer volume discounts?
Not on the standard tiers, which price linearly per inbox, but custom enterprise pricing with volume discounts becomes available starting at 15 inboxes and improves further past 50.
Is annual billing actually cheaper?
Yes, annual billing runs roughly 20% less than the equivalent monthly rate across every tier.
Which plan should most ecommerce sellers choose?
Pro is the most common fit for sellers running active, ongoing cold outreach, since the 250 daily warmup emails better match real campaign volume than Basic’s 75, without paying for Max’s higher ceiling most single-domain sellers do not need.
Final Take on WarmupInbox Pricing
WarmupInbox’s per-inbox pricing is straightforward and easy to budget for at small scale, though it scales linearly rather than getting cheaper per inbox as you add accounts, which matters more for agencies than solo sellers. Basic covers light single-domain use, Pro fits most active outreach campaigns, and Max is really a scale and support upgrade rather than a meaningfully different core product.
Our full WarmupInbox review covers the feature set and deliverability claims in more depth if you have not read it yet.
For structured help building your complete outreach and sourcing strategy, our done-for-you service covers this kind of implementation directly. Our coaching program takes the same approach one on one.
You can explore more resources at Ecommerce Paradise. If you are still working out your niche, our high-ticket niches list is a good place to start.
Our free mini course covers the fundamentals of building your store, including the outreach infrastructure decisions that make a tool like this one worth budgeting for in the first place.
Trevor Fenner is an ecommerce entrepreneur and the founder of Ecommerce Paradise, a platform focused on helping entrepreneurs build and scale profitable high-ticket ecommerce and dropshipping businesses. With over a decade of hands-on experience, Trevor specializes in high-ticket dropshipping strategy, niche and product selection, supplier recruiting and onboarding, Google & Bing Shopping ads, ecommerce SEO, and systems-driven automation and scaling. Through Ecommerce Paradise, he provides free education via in-depth guides like How to Start High-Ticket Dropshipping, advanced training through the High-Ticket Dropshipping Masterclass, and fully done-for-you turnkey ecommerce services for entrepreneurs who want a faster, more hands-off path to growth. Trevor is known for emphasizing sustainable, real-world ecommerce models over hype-driven tactics, helping store owners build scalable, sellable, and location-independent brands.
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