Short answer: Hypertide is a good fit if you want small Microsoft units of 25 inboxes and setup in hours. Frostmailer lets you put 25, 50 or 100 inboxes on a tenant for the same €30 with the .com domain included, and adds pre-warmed stock and a done-for-you build.
Side by side
| Frostmailer | Hypertide | |
|---|---|---|
| Microsoft / Azure | Yes. €30 per tenant: one .com domain plus 25, 50 or 100 inboxes | Entra at $25 per domain a month, with 25 inboxes included per domain |
| Google Workspace | Full admin, €3.00 / €2.80 / €2.50 per inbox by volume | $3.30 per inbox a month, no minimum |
| Domain included | Yes, a .com with every Azure tenant and with pre-warmed Google. For standard Google Workspace you bring your own | Yes, the domain is included in the $25 per domain price. You can also bring your own |
| Pre-warmed | Azure €50 per tenant, Google €8 per inbox, 4 weeks of warm-up done | Not offered on the site |
| Done-for-you build | Yes. Build and Release from €1,000 a month: infrastructure, copy, campaign and first month of leads | No |
| API and MCP | REST API and MCP server on every account | API included. No MCP server mentioned |
| Delivery | 10 to 24 hours | 4 to 6 hours |
| SMTP | No | No |
Hypertide details checked on 10 October 2026 from their public pages (sources below). Prices change, so confirm on their site before you buy.
When Hypertide is the better choice
- You only need 25 inboxes on a domain and want the smallest possible Azure unit.
- You need mailboxes live within a few hours.
When Frostmailer is the better choice
- You want more inboxes per domain. A Frostmailer tenant is €30 a month for 25, 50 or 100 inboxes with the .com included, the same price whichever you choose.
- You want pre-warmed Azure or Google that can send on day one.
- You want the whole system built for you with Build and Release, from €1,000 a month.
- You want to order from Claude Code or Cursor through an MCP server.
Questions
Is Hypertide or Frostmailer cheaper for Microsoft inboxes?
At 25 inboxes, yes, Hypertide is cheaper: $25 a domain a month against Frostmailer's €30 a tenant. Both include the domain. Hypertide's Entra pricing includes 25 inboxes per domain, while a Frostmailer tenant can hold 25, 50 or 100 inboxes for the same €30. Larger Frostmailer orders can also get volume pricing, so book a call if you are buying at scale.
Which is faster to set up?
Hypertide quotes 4 to 6 hours. Frostmailer delivers in 10 to 24 hours.
Does either sell pre-warmed inboxes?
Frostmailer sells pre-warmed Azure and Google with 4 weeks of warm-up done. Hypertide does not list a pre-warmed product.