Pricing

How much should you pay per cold email inbox? I compared 7 providers

costcruncher · 2026-04-01T00:00:00Z

I have bought inboxes from 7 different providers over the past year. Here is what each one costs, what is included, and what costs extra. The price per inb

costcruncher · 2026-04-01 · 2,650 views

I have been buying cold email inboxes from different providers for over a year now. I kept notes on pricing, what was included, and what I had to pay extra for. Here is the full breakdown across 7 providers so you can compare properly.

PuzzleInbox Google Workspace: $3 to $4.50 per inbox. Includes full DNS setup (SPF, DKIM, DMARC, MX records). Pre-warmed option available, meaning the inbox arrives with established sending reputation. Delivered in 24 to 72 hours. WhatsApp support with response times under 15 minutes. Nothing extra to pay. DNS is done, warmup is done (on pre-warmed accounts), and the inbox is ready to connect to your sending platform.

PuzzleInbox Outlook 365: $0.35 to $0.50 per inbox. Same DNS setup included. Pre-warming available. This is the cheapest inbox option I have found anywhere. At $0.35 each, you can run 100 Outlook inboxes for $35. The low per-inbox cost makes Outlook a great option for scaling volume without scaling budget.

Maildoso Google Workspace: $2 to $3 per inbox. DNS setup is included but I have had mixed results. Two batches arrived with DMARC records that needed manual fixing. No pre-warmed option. You need to run warmup yourself through Instantly or a separate tool, which adds 14 to 21 days before you can send. Support is email only, response time around 24 hours.

Cheapinboxes Google Workspace: $1.50 to $2.50 per inbox. Lowest Google Workspace price point. DNS setup is partial. SPF and DKIM were configured on my accounts, but DMARC was missing on some. No pre-warming. No Outlook option. Support exists but is slow. The low price is attractive, but factor in the time to fix DNS and the 2 to 3 weeks of warmup before you can send.

Mailstand Google Workspace: $3 to $5 per inbox. Decent quality. DNS is configured properly in my experience. No pre-warmed option. Delivery time was 48 to 96 hours. Support is responsive but email only. Pricing is higher than PuzzleInbox for Google Workspace without the pre-warming advantage.

Inframail Microsoft 365: flat rate starting at $99/month for unlimited inboxes. This sounds incredible on paper. The catch is that all inboxes are Microsoft only (no Google Workspace option), and the quality can vary. Deliverability to Gmail recipients is weaker from Outlook-only infrastructure. The flat rate makes sense if you need 50+ Microsoft inboxes. Below that, per-inbox pricing from PuzzleInbox is cheaper.

Hypertide Microsoft 365: approximately $5 per inbox. Outlook only, no Google Workspace. At $5 per Microsoft inbox, this is expensive compared to PuzzleInbox Outlook at $0.35. No pre-warming included. DNS setup is basic. You also need to pay for warmup separately at $15 to $20 per inbox per month, which pushes the true cost to $20 to $25 per inbox per month for the first few months.

The real cost is not just the inbox price. When comparing providers, add up: the inbox cost, warmup tool cost (if not included), time to manually fix DNS (if needed), and the opportunity cost of 2 to 3 weeks of warmup time where the inbox generates zero value. A $1.50 inbox that needs $20/month in warmup, manual DNS fixes, and sits idle for 3 weeks costs more in total than a $4 pre-warmed inbox that is ready to send on delivery.

I have settled on PuzzleInbox for both Google Workspace and Outlook. The pre-warming, done-for-you DNS, and fast support make it the best total value even though the per-inbox price is not the absolute cheapest for Google Workspace. For Outlook at $0.35, it is both the cheapest and the best quality I have tested.