Cold Email Index Free PDF reports

Inbox providers · 8th of 52 · 2026

Smtpfox pricing and review

smtpfox.ai · Private servers and dedicated IPs · legal entity: Microsaas Labs Pvt. Ltd. · Visit site ↗

COLD EMAIL INDEX · 2026 · SOURCED FACTS · 61 /100
  • Deliverability15/27
  • Inbox choice6/16
  • Sending8/15
  • API & AI4/7
  • Buying terms6/10
  • Setup cost22/25
8th of 52 inbox providers

Why it ranks here

Sells private SMTP inboxes. A working setup of 30 inboxes with warm-up and a sequencer costs $146 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 and dedicated IPs. It has a public API for automation.

Key features

  • Ongoing warm-up in the price
  • Automatic SPF/DKIM/DMARC
  • Dedicated IPs
  • A unified inbox
  • One-click export to other sequencers

Best for

High-volume senders who need private SMTP inboxes.

Pricing

Per inbox
$1.63
At volume
$1.49
Minimum order
30 inboxes
Cheapest plan
$49/mo

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.6/16
Sending and workflowWhether you can run and manage campaigns without another tool.8/15
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
Total61/10015 of 20 conditions checked

The evidence

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

Deliverability
Ongoing warm-up included in the priceConfirmedWe use clean dedicated IPs per domain/campaign, automatic warmups, spam trap monitoring, and rotating relays.source ↗6/6
Pre-warmed inboxesNot found on site0/2
Automatic SPF, DKIM and DMARC setupConfirmedAuto DKIM, SPF & DMARC. Zero config. Fully automatic.source ↗5/5
Inbox placement or spam testsNot found on site0/5
Replacement of burned inboxes or domainsNot found on site0/5
Dedicated IP optionConfirmed1 Dedicated IP per Domainsource ↗4/4
Inbox choice
Google Workspace inboxesNot found on site0/5
Microsoft 365 / Outlook inboxesNot found on site0/5
Private SMTP/IMAP inboxesConfirmedWe boot up dedicated Servers for every domain with dedicated IPssource ↗3/3
Domain purchase inside the productConfirmedPurchase Domains. Skip DNS hassle. We handle it all.source ↗3/3
Sending and workflow
Built-in campaign sequencerNot offeredWorks with any cold outreach platformsource ↗0/5
Unified inbox for repliesConfirmedEvery reply, forward & auto-response funneled into a single, powerful inbox.source ↗4/4
Export to other sending toolsConfirmedExport to any Sequencersource ↗4/4
Multi-client workspaces or white-labelNot found on site0/2
API and AI agents
Public APIConfirmedEverything in Starter Plan + API Accesssource ↗4/4
Official MCP serverNot found on site0/3
Buying terms
Prices published on the siteConfirmedStarter $49 $89 Billed Monthlysource ↗4/4
Free plan, free trial or money-back guaranteeNot offeredAll fees are non-refundable unless stated otherwise.source ↗0/4
Monthly billing availableConfirmed$49 $89 Billed Monthlysource ↗2/2
Cost of a working setup
Cost of a working setup (30 inboxes)Calculated30 inboxes × $1.63 = $48.90 + $97 — Instantly Hypergrowth for warm-up and sending (the inbox price includes neither) = $146/monthhow ↗22/25

Alternatives to Smtpfox

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