TL;DR
- IceMail is the price-first choice for a new fleet: its current Google and Microsoft offer is $2.50 per mailbox per month. Treat that as a limited offer, rather than a permanent rate.
- CheapInboxes suits agencies that want a straightforward per-mailbox purchase and domain-level administration. Its 60-mailbox bill is $210/month, before domains and the sending platform.
- Zapmail suits a team that values its provisioning dashboard, client workspaces and reply inbox. Growth plus 30 extra slots costs $196.50/month for 60 Google mailboxes. Pro costs more at that size, but includes API access.
- Owning a domain, administering a workspace and retaining a mailbox after cancelling its supplier are different things. Keep the client’s domain registration and campaign history under the client’s control.
What you are buying
These providers sell mailbox infrastructure: creating accounts, configuring domains and connecting those accounts to an outreach tool. They are useful when an agency would otherwise repeat the same administrative work across many small domains. The mailbox purchase does not by itself supply prospect data, campaign copy, a sending sequence or a successful cold-email programme.
The practical comparison is a fleet of equivalent Google Workspace or Microsoft 365 mailboxes. An SMTP relay, a domain containing many low-volume accounts and a conventional Workspace mailbox can have different connection methods and operating constraints. A low price for one of those products should not displace the price for the product you actually intend to use.
This guide compares fresh Google mailboxes in its worked example. The client already uses a paid sequencer. That keeps the buying decision focused on provisioning rather than comparing three unrelated outreach stacks. For the wider stack, see our cold-email infrastructure comparison.
Price and supplier comparison
Prices below were accessed on 1 October 2026. USD amounts exclude taxes, domains and separate campaign software. Monthly billing is used throughout; an annual equivalent is not substituted for a monthly invoice.
| Buying dimension | CheapInboxes | Zapmail | IceMail |
|---|---|---|---|
| Comparable product | Google or Microsoft mailboxes | Google or Microsoft mailbox plans | Google or Microsoft mailboxes |
| Published mailbox basis | $3.50/month at 1–99; $3.25 at 100–249; $3 at 250–999; $2.80 at 1,000+ | Starter $39/10; Growth $99/30; Pro $299/100 monthly; extra slots $3.50/$3.25/$3 respectively | Current limited offer $2.50/mailbox/month; $3.50 displayed alongside it |
| Administration | One domain per workspace; full admin access advertised | Separate workspaces; Google credential export and Microsoft admin/login access documented | One admin panel per domain with 2FA advertised |
| Setup and connections | Domain/DNS and sequencer provisioning, including an API | DNS setup and platform exports; API shown on Pro | DNS setup, exports, API and webhooks advertised |
| Reply handling | Use the connected sequencer in this comparison | ZapBox is available across plans | Unified inbox advertised |
| Setup fee basis | No separate charge shown in the public mailbox tariff | No separate charge shown in the base plan cards | No separate charge shown in the mailbox tariff |
| Replacement basis | Google suspensions excluded from refunds in published terms | Deleted slots remain used for that billing cycle | Free replacements advertised; not treated here as unlimited protection |
The setup row describes what is in the public tariff, rather than adding an invented one-off fee. Domain purchases, pre-warmed inventory and premium protection are separate buying choices. See the CheapInboxes tariff, Zapmail plan cards, Zapmail mailbox documentation and IceMail pricing.
The three providers
1. CheapInboxes: straightforward fleet purchasing
CheapInboxes offers a per-mailbox tariff with volume tiers, domain-level workspaces and admin access. This is an intelligible purchase for an agency keeping its sending software elsewhere: buy the required fleet rather than choose a bundle whose unused slots have no immediate value.
Its developer documentation describes provisioning domains, Google/Microsoft accounts, DNS and sequencer connections, including bringing domains from another registrar. That is useful for repeated client onboarding. For example, a standard order can preserve the same mailbox naming convention and forwarding destination across ten domains without an operator rebuilding each order manually.
The commercial limitation is replacement risk. Its published terms exclude refunds for Google suspensions and request seven days’ cancellation notice. We would not price a suspended fleet as though the supplier must refund it. The attraction is a simple unit price and administration, rather than insurance against a campaign damaging an account.
Choose it when domain administration and repeatable setup matter more than saving the last dollar per mailbox. Choose another option when you need a reply-management layer inside the provisioning product or are primarily buying the cheapest small fleet.
2. Zapmail: a bundle with operational tools
Zapmail’s bundled slots make the qualifying plan important. At 60 mailboxes, Growth with additional slots is cheaper than Pro. Paying $299 merely because the team has several clients buys 40 unused slots in this example. Pro becomes relevant if its API is part of the agency’s actual onboarding process.
Reply handling is also part of the value calculation. ZapBox gives teams a unified reply inbox across plans. An older competitor table that leaves Zapmail’s master-inbox cell blank is therefore a poor basis for a current purchase. A team that already manages every reply in its sequencer may gain little from this; a team handling scattered mailbox logins can gain much more.
The operating constraint is its mailbox lifecycle. Zapmail documents a creation window, next-cycle reuse of deleted slots and no import of existing mailboxes. Its standard mailboxes also require a warmup period; they are distinct from the pre-warmed purchase. Build each new domain’s intended mailbox count together rather than assuming unused capacity means an existing workspace can expand instantly. These are Zapmail’s documented rules, not a claim that every Google reseller works identically.
Its subscription guide says first-year discounted mailbox pricing moves to standard renewal rates after 12 months. The example below uses today’s monthly tariff; it does not lock that rate into year two.
Choose it when workspace management and consolidated replies save the operator time. Choose another option when you need to carry an existing fleet into the platform intact or want pure per-mailbox billing without bundle capacity.
3. IceMail: the lowest current fresh-mailbox price
IceMail’s current offer is attractive for a newly provisioned fleet: no platform base subscription in its Water plan, with monthly charges for the mailboxes themselves. It advertises per-domain admin panels, a unified inbox and API access. That gives a small agency a lower entry cost without requiring Zapmail Pro merely for an API.
The displayed $2.50 rate is a limited offer. The adjacent $3.50 figure is useful as a sensitivity case, not evidence that every existing buyer will renew at precisely that amount. IceMail also lists Azure and SMTP products. Those are separate configurations and are not used to make its conventional Google mailboxes look artificially cheap. Source: IceMail pricing.
It advertises free mailbox replacements. That is a useful service promise, but it does not make a domain’s reputation or lost campaign time replaceable. Nor is a replacement promise a promise to preserve deleted mail. Its reactivation policy allows a seven-day soft-deletion window, with permanent deletion afterwards. Keep valuable conversations in the client’s CRM or exported archive before winding a fleet down.
Choose it when current price, a reply inbox and API availability are the leading criteria. Choose another option when you prefer an established per-unit tier purchase to a limited promotional rate, or the team has no need for IceMail’s included tools.
A 60-mailbox agency example
Consider two clients, each with ten sending domains and three Google mailboxes per domain: 20 domains and 60 mailboxes. The domains remain registered in client-controlled accounts. All three providers are compared against this same fresh fleet. These are editorial planning assumptions, not a deliverability test or a recommended universal sending limit.
| Provider and purchase | Monthly mailbox calculation | Mailbox subtotal | 12 months at the stated rate |
|---|---|---|---|
| CheapInboxes | 60 × $3.50 | $210 | $2,520 |
| Zapmail Growth, shared agency subscription | $99 + 30 × $3.25 | $196.50 | $2,358 |
| Zapmail, one Growth subscription per client | 2 × $99 for 30 slots each | $198 | $2,376 |
| IceMail current offer | 60 × $2.50 | $150 | $1,800 |
| IceMail $3.50 sensitivity | 60 × $3.50 | $210 | $2,520 |
The 12-month column multiplies current monthly costs. It is neither an annual-plan quotation nor a promise about future renewal. Separate Zapmail subscriptions cost only $1.50/month more here; that may be sensible when each client needs its own billing relationship. Workspace separation inside a shared agency subscription is a different decision from separate bills.
Add an assumed $12 per domain per year at the existing registrar: 20 × $12 = $240. This is a common modelling allowance, not a price attributed to any of the providers. Fresh-fleet first-year mailbox-plus-domain subtotals are consequently $2,760 for CheapInboxes, $2,598 for shared Zapmail Growth and $2,040 for IceMail’s current offer. The existing sequencer, taxes, premium warmup and labour sit outside those subtotals.
Can operational savings outweigh the mailbox difference?
IceMail saves $46.50/month against shared Zapmail Growth and $60/month against CheapInboxes at this count. At an assumed operator cost of $60/hour, those differences represent 46.5 minutes and one hour per month. That is a useful decision threshold: a product that reliably removes an hour of reply triage or account maintenance can justify the higher mailbox invoice.
The threshold is small enough that switching an established fleet solely for the sticker price can be unattractive. Suppose exporting histories, rebuilding connections and reassigning mailbox owners takes six hours at $60/hour, or $360. A $60 monthly saving pays that labour back in six months; a $46.50 saving takes about 7.74 months. Additional domain changes or a slower campaign ramp extend that period. Provisioning a new client on the cheaper service avoids much of that migration work.
What happens if one domain needs replacement?
One failed domain removes three of the 60 mailboxes, or 5% of the fleet. Adding three replacement accounts while the old charges remain active would add $10.50/month at CheapInboxes’ entry rate, $9.75 in Zapmail Growth extra slots, or $7.50 at IceMail’s current rate. These are paid-overlap scenarios, not an assertion that each supplier must charge this amount for a support replacement. IceMail’s advertised free replacement could remove its mailbox charge; a new domain and operator time can still cost money.
The larger issue is lost useful sending days. A new account does not inherit a damaged domain’s good history merely because its display name matches. Keep the remaining domains running at their normal pace rather than doubling their load to hide a gap. That preserves a workable campaign while a replacement is introduced.
Ownership, replacements and switching
Keep three ownership records: the registrar account, the mailbox/workspace administrator and the system holding client conversations. Admin access gives operational control; a paid supplier can still cease providing licences when its subscription ends. A mailbox password is not a perpetual licence.
For the example agency, each client should retain registrar ownership while the agency manages the provisioning tool and sending connections. Record the domain, mailbox address, client, workspace administrator and connected campaign in a shared register. The register prevents a departing client’s account from being left inside the wrong campaign or paid from the wrong subscription.
Before switching, preserve reply histories, suppression lists and live campaign ownership, then move only the intended accounts. Zapmail’s no-import rule makes it a fresh-provisioning choice in this comparison. IceMail’s seven-day recovery window makes deletion a poor substitute for exporting an archive. CheapInboxes’ suspension exclusion makes refunds a poor substitute for operating the fleet carefully. These concrete differences matter more than treating every provider’s word “ownership” as identical.
A replacement restores a usable account. It does not automatically restore domain reputation, client records or the time spent reconnecting campaigns. Evaluate a replacement promise as part of support value rather than add imaginary compensation to the economics.
Which provider to choose
For a fresh 60-mailbox fleet, start with IceMail if the current offer and its Google configuration fit the agency’s sending stack. It has the strongest published price in this scenario, with useful administration and reply tools included. Budgeting at $3.50 as well shows that the recommendation does not require pretending the offer lasts forever.
Choose CheapInboxes for straightforward per-mailbox purchasing and domain-level administration, especially when a repeatable API-driven order is worth more than the $60 monthly difference. Keep the client’s registrar and records independent of the provisioning subscription.
Choose Zapmail when its dashboard and ZapBox reduce ongoing work. Growth is the sensible 60-mailbox purchase; Pro is a deliberate API or capacity purchase. Its mailbox creation and renewal rules deserve to be reflected in the agency’s onboarding process, rather than left as an unexpected operator problem.
A better fleet cannot rescue indiscriminate targeting. Use the signal-based outbound playbook to decide which accounts merit outreach and how to connect replies to the next sales action.
FAQ
Is a mailbox provider the same as a cold-email sending platform?
No. Provisioning supplies and configures the accounts. A sequencer schedules campaigns, handles follow-ups and usually holds campaign reporting. An included unified inbox can help with replies, but it does not mean the mailbox tariff covers an entire outreach stack. Compare provisioning charges alongside the campaign system you actually use.
Which is cheapest for 60 Google mailboxes?
IceMail’s current $2.50 offer produces a $150 monthly mailbox subtotal. Shared Zapmail Growth produces $196.50 and CheapInboxes $210. Domains, taxes and sending software are additional. If IceMail’s offer no longer applies, $3.50 per mailbox produces $210; operational features then carry more weight than the price difference.
Does admin access mean I keep mailboxes after cancelling?
Admin access is control while the service is supplied. It does not establish that licences and stored messages survive cancellation. Retain domain registration, important correspondence and campaign records in client-controlled systems. Cancel after those records are preserved, rather than assuming a password will keep an unpaid mailbox alive.
Are all three products pre-warmed?
The worked comparison is for fresh mailboxes. Zapmail explicitly separates standard and pre-warmed plans; IceMail also prices pre-warmed inventory separately. A provisioning-time claim is not evidence that a newly created account is ready for the same campaign volume as an established account. Choose the fresh or pre-warmed purchase deliberately instead of mixing their prices.
Should an agency migrate its whole fleet to save $1 per mailbox?
A new client fleet is the easier opportunity. An established fleet has histories, campaign connections and operator habits to preserve. In this example, six hours of migration labour costs $360 and takes six months to recover from a $60 monthly saving. A switch makes more sense when it also improves reply handling, administration or client offboarding, rather than relying entirely on a small tariff gap.
