Hypertide
Isolated Microsoft tenant infrastructure sold per order rather than per inbox.
From $3.30/inbox/mo API
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Bottom line
Google, Microsoft, and Entra inboxes for cold email. Google inboxes are $3.30 each per month with no minimum.
Stands out for: Flat $3.30 per Google inbox, no packages, plus Entra domains at $25 with 25 inboxes included.
Watch out for: No free trial. Entra is the volume SKU; Google is per inbox. Month-to-month, cancel in the app.
Overview
Hypertide automates cold-email infrastructure across Google, Microsoft, and Entra. Google inboxes are $3.30 per inbox per month with no packages and no minimums. Entra domains are $25 per domain per month and include 25 inboxes. Every plan includes HyperTide Relay and Layover, automated setup in hours, OAuth or SMTP upload to your sequencer, enterprise DNS, domain analytics, full API access, unlimited team seats, and agency workspaces. Compatible sequencers named are SmartLead, Instantly, and Bison.
Agencies pick Hypertide to avoid virtual-assistant inbox setup. Tenant separation gives each order its own domain and IP. There is no free trial; plans are month-to-month and you can cancel in the app. The $3.30 Google rate is the cheapest per-inbox SKU. Entra at $25 per domain is $1 per inbox if you use all 25. Setup is quoted as 4 to 6 hours, not weeks of DIY warmup.
Who it's for
Best for
- Teams that want one Google inbox or ten thousand at the same rate
- Agencies buying Entra domains at $25 for 25 inboxes
- Senders exporting over OAuth or SMTP to Instantly or Smartlead
- Shops that want API access and unlimited seats included
Not ideal for
- Buyers who want a free trial before the first inbox
- Teams that only want cheap shared SMTP under $1
Key features
Azure tenant. Isolated Azure / Microsoft tenant infrastructure for mailbox hosting.
Warmup schedule. Vendor claims compressed warmup schedules.
Screenshots
Email infrastructure dashboard
Mailbox automation view
Inbox management table
Images: Hypertide's own website. Select an image to see it full size.
Pricing
| Plan | Price | What you get |
|---|---|---|
| Google inboxes | $3.30/inbox/mo | No minimum, month to month |
| Entra domains | $25/domain/mo | Includes 25 inboxes, API and unlimited seats |
Google inboxes $3.30/inbox/month with no minimum. Entra domains $25/domain/month including 25 inboxes. API, unlimited seats, Relay, Layover, and DNS included. No free trial. Month-to-month, cancel in the app. Confirm current terms on the vendor site.
Checked 19 Sep 2026. Vendors change prices without notice.
Is Hypertide expensive?
Hypertide starts at $3.30/inbox/mo. We list 36 deliverability tools in total. 4 have a free tier, and those with a public price typically start around $10 a month.
- 1 quote-based
- 4 free tier
- 35 public price
Worked out automatically from every deliverability listing, so it updates as the directory changes.
Pros and cons
Pros
- $3.30/inbox/mo, no minimum
- API and unlimited seats included
- Entra domains at $25 for 25 inboxes
Cons
- No free trial
- Not a sub-$1 SMTP shop
- Entra and Google are separate SKUs
Integrations
Smartlead Instantly EmailBison
What's new at Hypertide
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How Hypertide compares
See all Hypertide alternatives, with what each one does differently and a head to head for every pairing.
| Tool | Free tier | From | MCP | API | Compare |
|---|---|---|---|---|---|
| | – | $3.30/inbox/mo | – | ✓ | |
| | – | $39/mo | – | ✓ | Compare |
| | – | $4.50/mailbox/mo | – | ✓ | Compare |
| | – | $3.50/mailbox/mo | ✓ | ✓ | Compare |
| | – | $3/inbox/mo | – | ✓ | Compare |
$39/mo API
Google and Microsoft packs from $39/mo if you want a bundled starter.
$4.50/mailbox/mo API
Forge-stack Google and Microsoft slots from $4.50 yearly.
$3.50/mailbox/mo MCP API
Google and Microsoft from $3.50 with MCP and admin access.
$3/inbox/mo API
SMTP from $3, Google from $4, billed monthly or annually.
Your next step
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