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ZapmailvsInfraforge

Zapmail vs Infraforge: Which Wins?

We compared Zapmail and Infraforge on Google Workspace vs dedicated IP SMTP, pricing, and features for cold email infrastructure setup.

Akshay Prasath
2 min readUpdated Mar 2026

The Verdict

Both providers chose deliverability over rock-bottom pricing, but they took opposite routes to get there. Zapmail leans on Google Workspace as the deliverability story: real provider mailboxes, AI-assisted setup, $2.99-$3.90 per mailbox all-in. Infraforge leans on isolation: SMTP mailboxes on dedicated IPs at $3-$4 per mailbox plus $99/mo for the IP plus optional domain masking.

The Zapmail bill is one number. The Infraforge bill stacks. If you trust Google's reputation more than dedicated IPs, Zapmail is the simpler purchase.

If you specifically need IP isolation because your campaigns can't share a pool, Infraforge earns the add-on math.

Zapmail vs Infraforge

FeatureZapmailZapmailInfraforgeInfraforge
Pricing
Price per Mailbox
$3.00-$3.90/mo

Google Workspace tiered pricing

$3-$4/mo

Dedicated IP SMTP

Additional Fees
$39-$299/mo base

Base monthly fee per tier

$99/mo dedicated IP

Plus $2/domain/mo for masking

Cost for 50 Mailboxes
$164/mo

Growth plan + 20 extra at $3.25

$274-$299/mo

50 x $3.50 avg + $99 dedicated IP

Infrastructure
Mailbox Type
Google Workspace

Exclusively Google Workspace

SMTP (dedicated IP)

SMTP with dedicated IPs

IP Infrastructure
Google IPs

Google Workspace infrastructure

Dedicated IPs

Your own dedicated IP addresses

Multi IP Provisioning
No

Google manages IPs

Yes

Provision multiple dedicated IPs

Deliverability
Pre-warmed
Pre-warmed accounts

Accounts ready to send

Pre-warmed domains

Domains pre-warmed for faster ramp

Features
AI Tools
Domain + mailbox AI

AI domain generator and mailbox namer

No

No AI-assisted setup

Different Approaches to Deliverability

Zapmail and Infraforge both prioritize deliverability over cost, but take different approaches. Zapmail leverages Google Workspace infrastructure, which carries trust signals built by Google over decades. Infraforge uses dedicated IP SMTP, which gives you full control over your sender reputation from scratch.

Google Workspace mailboxes are generally easier to warm up and maintain because they inherit baseline reputation from the Google ecosystem. Dedicated IP SMTP requires more careful warmup and reputation management, but gives you complete independence from any shared infrastructure.

Key takeaways

  • Zapmail: leverages Google trust signals for deliverability
  • Infraforge: full sender reputation control via dedicated IPs
  • GWS is easier to maintain; dedicated SMTP gives more control

Zapmail vs Infraforge: Which One Fits Your Use Case

Choose Zapmail if you prefer Google Workspace deliverability, want AI-assisted setup, and value lower total cost. At 50 mailboxes, Zapmail costs $164/mo versus roughly $275/mo for Infraforge. Choose Infraforge if you need granular IP control with multi IP provisioning and want SMTP independence from Google.

The dedicated IP gives complete reputation isolation. For teams that want Google Workspace plus bundled deliverability tooling, InboxKit ships three tiers (Professional $31, Agency $81, Enterprise $250) with US-based IPs and the verifier, placement testing, and blacklist checker included in every tier. Email Warmup is a separate $3/mailbox add-on if needed.

Key takeaways

  • Zapmail: lower total cost, Google Workspace, AI tools
  • Infraforge: IP control, multi IP provisioning, SMTP independence
  • InboxKit: tier-based pricing ($31/$81/$250 for 10/30/100 mailbox slots) with GWS and bundled deliverability tools

Pros & Cons

Zapmail

Strengths

  • Google Workspace mailboxes with strong default deliverability
  • AI domain generator and mailbox namer
  • Pre-warmed accounts for faster ramp-up
  • Lower total cost than Infraforge at most volumes
  • 4.5 TrustPilot rating, 1M+ mailboxes set up

Limitations

  • Google Workspace only, no SMTP option
  • No inbox placement testing or verification
  • Base monthly fees add to total cost

Infraforge

Strengths

  • Dedicated IP for complete sender isolation
  • Multi IP provisioning for campaign separation
  • Pre-warmed domains
  • API access and masterbox

Limitations

  • Higher total cost with $99/mo dedicated IP add-on
  • SMTP only, no Google Workspace
  • SSL/domain masking adds $2/domain/mo
  • No AI tools or deliverability monitoring
frequently asked questions

Got questions? We've got answers.

Zapmail is cheaper at most volumes. At 50 mailboxes: Zapmail costs $164/mo, Infraforge costs roughly $275/mo. The $99/mo dedicated IP fee on Infraforge adds up.

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