Mailforge vs Infraforge: Both Salesforge Products Compared
Mailforge and Infraforge are both Salesforge products but target different teams. Distributed vs private infrastructure, pricing, and when to pick each.
Two Products, One Parent Company
Salesforge operates both Mailforge and Infraforge as separate cold email infrastructure products. The confusing part: many buyers don't realize they're comparing two products from the same company. The practical question isn't "which is better," it's "which fits your scale and budget."
Mailforge positions as the distributed infrastructure option at accessible pricing. Infraforge positions as the private infrastructure option for teams willing to pay premium for dedicated setups. Here's the breakdown.
Core Architectural Difference
Mailforge uses a distributed infrastructure model. Multiple customers share the underlying infrastructure layer while each gets dedicated inboxes. This model reduces cost per inbox but introduces shared-reputation risk if other customers on the same infrastructure make mistakes.
Infraforge uses a private infrastructure model. Each customer gets dedicated infrastructure allocated specifically to them. Higher cost. Lower shared-reputation risk. Designed for higher-volume operations where infrastructure isolation matters.
| Feature | Puzzle Inbox | Mailforge vs Infraforge |
|---|---|---|
| Infrastructure model | Distributed (Mailforge) / Private (Infraforge) | Private infrastructure |
| Starting price | $0.35/inbox (Puzzle) | Higher than Mailforge |
| Target user | Smaller teams | Agencies, higher volume |
| Pre-warmed | Yes (Puzzle) | Varies |
| DNS setup | Done for you | Included |
| Support | WhatsApp, 15 min | Email-focused |
Mailforge Strengths and Weaknesses
Mailforge Strengths
- Lower per-inbox pricing than Infraforge
- Faster provisioning (distributed infrastructure scales more easily)
- Integrated with Salesforge sending platform
Mailforge Weaknesses
- Shared infrastructure means other customers can impact your reputation
- Limited to Google Workspace for many configurations
- Less control over underlying sending IPs
Infraforge Strengths and Weaknesses
Infraforge Strengths
- Private infrastructure isolates your reputation
- Better for higher-volume operations where shared-infrastructure risk matters
- More customization options
Infraforge Weaknesses
- Premium pricing significantly above Mailforge
- Setup more complex than distributed infrastructure
- Longer provisioning timeline
When to Pick Mailforge
You're running fewer than 50 inboxes, your volume is modest (under 500 emails per day), and pricing matters more than infrastructure isolation. The shared infrastructure risk is real but manageable at low volume.
When to Pick Infraforge
You're running 100+ inboxes, high daily volume, and you can't afford reputation spillover from other customers. The premium pricing is justified when you're generating enough pipeline to make infrastructure isolation a worthwhile investment.
Puzzle Inbox as Alternative
Puzzle Inbox offers dedicated Google Workspace and Outlook 365 inboxes starting at $0.35 per Outlook inbox and $3 to $4.50 per Google inbox. Pre-warmed options included. WhatsApp support responds in under 15 minutes.
Compared to Mailforge: lower price for pre-warmed Google inboxes, Outlook option (which Mailforge has in limited form), faster support.
Compared to Infraforge: significantly lower pricing for dedicated inboxes, similar deliverability on properly configured infrastructure.
Related Reading
- Infraforge Review 2026: Dedicated IP Cold Email Infrastructure Analysis — Infraforge provides dedicated IP cold email infrastructure for enterprise teams. This review covers pricing, setup complexity, and whether dedicated IPs justify the premium.
- Mailforge Review 2026: Self-Service SMTP Cold Email Infrastructure — Mailforge offers self-service SMTP cold email infrastructure. This review covers setup complexity, deliverability, and who actually benefits from SMTP vs Google Workspace.
- 6 Best Infraforge Alternatives for Cold Email Infrastructure in 2026 — Infraforge is enterprise dedicated IP infrastructure. Here are the 6 best alternatives for cold email operations that do not need enterprise complexity.
- 5 Best Mailforge Alternatives for Cold Email in 2026 — Mailforge offers SMTP infrastructure with long warmup requirements. Here are 5 Mailforge alternatives for cold email operations wanting faster setup.
- Switching from Mailforge to Puzzle Inbox: SMTP to GWS Migration Guide — Migrating cold email infrastructure from Mailforge SMTP to Puzzle Inbox Google Workspace and Outlook. Step-by-step migration process.