TL;DR
Mailforge = $2-3/inbox on shared IPs. Infraforge = $3.33/inbox with dedicated IPs. Choose Mailforge for budget, Infraforge for isolated reputation.
Feature Comparison
The Core Difference
Mailforge uses shared IPs. Your deliverability is partially affected by other users on the same infrastructure.
Infraforge gives you dedicated IPs. Your reputation is entirely your own.
The price difference is small ($2-3 vs $3.33), but the infrastructure difference is significant.
When to Choose Mailforge
- Budget is the priority
- You're testing cold email
- You're comfortable monitoring and rotating inboxes
- You plan to upgrade to Infraforge later if needed
When to Choose Infraforge
- You need isolated reputation
- You've been burned by shared IP issues
- Deliverability consistency matters
- You're running campaigns where reputation is critical
The Upgrade Path
One advantage of the Forge ecosystem: you can start with Mailforge and upgrade to Primeforge or Infraforge as you grow. The transition is straightforward since they're the same company.
Verdict
For most teams, the $1/inbox difference is worth paying for dedicated IPs. But Mailforge works fine if you're budget-constrained and willing to monitor performance.
Choose Mailforge if
Choose Mailforge if budget is tight and you'll actively monitor inboxes.
Choose Infraforge if
Choose Infraforge if you want dedicated IPs and isolated reputation.
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Start setupLast updated: 2026-05-20