Cold Email Index Free PDF reports

Inbox providers · 25th of 52 · 2026

Premium Inboxes pricing and review

premiuminboxes.com · Google & Microsoft inbox reseller · founded 2023 · Visit site ↗

COLD EMAIL INDEX · 2026 · SOURCED FACTS · 52 /100
  • Deliverability15/27
  • Inbox choice13/16
  • Sending6/15
  • API & AI4/7
  • Buying terms6/10
  • Setup cost8/25
25th of 52 inbox providers

Why it ranks here

Sells Google Workspace and Microsoft 365 inboxes. Deliverability: automatic SPF/DKIM/DMARC, inbox placement tests and replacement of burned inboxes. It has a public API for automation. Agencies get client workspaces or a white-label option.

Key features

  • Automatic SPF/DKIM/DMARC
  • Inbox placement tests
  • Replacement of burned inboxes
  • Google Workspace inboxes
  • Microsoft 365 inboxes

Best for

Agencies that run inboxes for several clients.

Pricing

Per inbox
$3.50
At volume
$2.80

Monthly billing. Pricing page ↗ · checked Oct 31, 2026

Scorecard

DeliverabilityWhat protects sender reputation without extra tools or subscriptions.15/27
Inbox choiceWhich types of inboxes and domains you can get in one place.13/16
Sending and workflowWhether you can run and manage campaigns without another tool.6/15
API and AI agentsHow easy it is to automate the setup from code or an AI assistant.4/7
Buying termsHow much you risk before you know it works.6/10
Cost of a working setupWhat 30 inboxes plus warm-up and a sequencer cost per month — the cheaper, the more points.8/25
Total52/10016 of 20 conditions checked

The evidence

Every condition, what the vendor's own site says, and where.

Deliverability
Ongoing warm-up included in the priceNot found on site0/6
Pre-warmed inboxesNot offeredYour inboxes arrive set up, verified, and ready to warm.source ↗0/2
Automatic SPF, DKIM and DMARC setupConfirmedDomains, DNS, SPF/DKIM/DMARC, inbox creation, sequencer setup, and warmup enabledsource ↗5/5
Inbox placement or spam testsConfirmedContinuous Placement Testingsource ↗5/5
Replacement of burned inboxes or domainsConfirmedWe replace them free, so your sending never goes dark.source ↗5/5
Dedicated IP optionNot found on site0/4
Inbox choice
Google Workspace inboxesConfirmedOfficial Google & Microsoft Inboxessource ↗5/5
Microsoft 365 / Outlook inboxesConfirmedOfficial Google & Microsoft Inboxessource ↗5/5
Private SMTP/IMAP inboxesNot found on site0/3
Domain purchase inside the productConfirmedDomains sourced and procured for yousource ↗3/3
Sending and workflow
Built-in campaign sequencerNot offeredUploaded Directly to your sequencersource ↗0/5
Unified inbox for repliesNot found on site0/4
Export to other sending toolsConfirmedUploaded Directly to your sequencersource ↗4/4
Multi-client workspaces or white-labelConfirmedAgencies White-label the whole flow. Your client sees your brand, your dashboard, your reports. We stay invisible under the hood.source ↗2/2
API and AI agents
Public APIConfirmedOne token represents your agency (the top-level Premium Inboxes account). The token authorizes access to all workspaces owned by that agency.source ↗4/4
Official MCP serverNot found on site0/3
Buying terms
Prices published on the siteConfirmed$3.50 / per inboxsource ↗4/4
Free plan, free trial or money-back guaranteeNot found on site0/4
Monthly billing availableConfirmedMonthly Annual Save 20% ... No monthly commitmentsource ↗2/2
Cost of a working setup
Cost of a working setup (30 inboxes)Calculated30 inboxes × $3.50 = $105 + $97 — Instantly Hypergrowth for warm-up and sending (the inbox price includes neither) = $202/monthhow ↗8/25

Alternatives to Premium Inboxes

Where we checked

Only the vendor's own public pages. We do not use third-party reviews or ratings. Something wrong? Send a correction.

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Every fact is from the vendor's own site, same rules for everyone · Method · Disclosure