Cold Email Index Free PDF reports

Inbox providers · 3rd of 52 · 2026

MailDeck pricing and review

maildeck.co · Private SMTP infrastructure · legal entity: The Scaling Group LLC · Visit site ↗

COLD EMAIL INDEX · 2026 · SOURCED FACTS · 76 /100
  • Deliverability22/27
  • Inbox choice16/16
  • Sending6/15
  • API & AI4/7
  • Buying terms6/10
  • Setup cost22/25
3rd of 52 inbox providers

Why it ranks here

Sells Google Workspace, Microsoft 365 and private SMTP inboxes. A working setup of 50 inboxes with warm-up and a sequencer costs $127 a month, one of the lowest in the index. Warm-up keeps running for the life of the inbox at no extra cost. Deliverability: automatic SPF/DKIM/DMARC, replacement of burned inboxes and dedicated IPs. It has a public API for automation.

Key features

  • Ongoing warm-up in the price
  • Automatic SPF/DKIM/DMARC
  • Replacement of burned inboxes
  • Google Workspace inboxes
  • Microsoft 365 inboxes

Best for

Agencies that run inboxes for several clients.

Pricing

Per inbox
$0.60
At volume
$0.40
Minimum order
50 inboxes
Cheapest plan
$30/mo

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

Scorecard

DeliverabilityWhat protects sender reputation without extra tools or subscriptions.22/27
Inbox choiceWhich types of inboxes and domains you can get in one place.16/16
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.22/25
Total76/10017 of 20 conditions checked

The evidence

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

Deliverability
Ongoing warm-up included in the priceConfirmedWarm-up included, ready to send from day onesource ↗6/6
Pre-warmed inboxesConfirmedPre-Warmed Outlook inboxes at $40 per tenant skip warmup entirely and are ready for cold sending immediately.source ↗2/2
Automatic SPF, DKIM and DMARC setupConfirmedComplete DNS Auth Setupsource ↗5/5
Inbox placement or spam testsNot found on site0/5
Replacement of burned inboxes or domainsConfirmedWhat happens if a domain gets burned? MailDeck includes free domain replacement when a domain burns under normal sending conditions.source ↗5/5
Dedicated IP optionConfirmedPrivate SMTP ... Dedicated IP Addresssource ↗4/4
Inbox choice
Google Workspace inboxesConfirmedGoogle Workspace SOLD OUTsource ↗5/5
Microsoft 365 / Outlook inboxesConfirmedOutlook Tenants $60/tenant ... Individual US Microsoft Tenantssource ↗5/5
Private SMTP/IMAP inboxesConfirmedPrivate SMTP $0.99/inbox $0.74 /inbox ... Dedicated IP Addresssource ↗3/3
Domain purchase inside the productConfirmedStarter Plan ... 2 domains includedsource ↗3/3
Sending and workflow
Built-in campaign sequencerNot offered+15 Sending Tool Integrationsource ↗0/5
Unified inbox for repliesNot found on site0/4
Export to other sending toolsConfirmed+15 Sending Tool Integrationsource ↗4/4
Multi-client workspaces or white-labelConfirmedUnlimited team members workspacessource ↗2/2
API and AI agents
Public APIConfirmedFull API access with webhookssource ↗4/4
Official MCP serverNot found on site0/3
Buying terms
Prices published on the siteConfirmedStarter Plan $39/month $35 /monthsource ↗4/4
Free plan, free trial or money-back guaranteeNot found on site0/4
Monthly billing availableConfirmedStarter Plan $39/monthsource ↗2/2
Cost of a working setup
Cost of a working setup (30 inboxes)Calculated50 inboxes × $0.60 = $30 + $97 — Instantly Hypergrowth for warm-up and sending (the inbox price includes neither) = $127/monthhow ↗22/25

Alternatives to MailDeck

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