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vsInboxKit vs Infraforge: Dedicated IP Infrastructure Compared (2026)
Infraforge offers private email infrastructure with dedicated IPs starting at $3/mailbox/month annual, plus $99/IP/month for dedicated IPs. InboxKit provides real Google Workspace from $2.99/mo with built-in monitoring and inbox placement testing. The comparison comes down to dedicated IP control (Infraforge) versus real-account deliverability with integrated monitoring (InboxKit).
Infraforge homepage as of Apr 2026
Our Summary
Infraforge.ai is the private infrastructure layer of the Salesforge ecosystem, designed for users who want dedicated IP addresses and full control over their sending infrastructure. Unlike Mailforge (shared IPs) or Primeforge (real Google/Microsoft accounts), Infraforge provides its own mailbox infrastructure with the option to add dedicated IPs for $99/IP/month.
Pricing starts at $4/mailbox/month (monthly) or $3/mailbox/month (annual), with a minimum of 10 slots. Add-ons include dedicated IPs at $99/IP/month, SSL and domain masking at $2/domain/month, and Masterbox at $7-9/workspace/month. The platform carries a 4.9 user rating and offers pre-warmed infrastructure, automated DNS, bulk DNS updates, API access, and whitelabel capabilities.
Infraforge also supports domain transferring, multiple workspaces, and API access. The whitelabel option makes it popular with agencies who want to resell email infrastructure under their own brand. However, the full cost can escalate quickly when dedicated IPs and other add-ons are factored in.
Feature Comparison
| Feature |  InboxKit | |
|---|---|---|
| Infrastructure | ||
| Account Type | Real Google Workspace & Microsoft 365 | Dedicated-IP SMTP mailboxes |
| IP Addresses | Dedicated US IPs | Dedicated IPs ($99/IP setup) |
| Pricing | ||
| Per-Mailbox Cost | $2.99/mailbox/mo | $3/mailbox/mo + $99/IP |
| Total Cost (100 mb) | $250/mo | $300/mo + IP fees |
| Monitoring & Deliverability | ||
| Domain Monitoring | InfraGuard included | Not included |
| Inbox Placement Testing | Unlimited | Not included |
Switch to InboxKit
Dedicated IPs. Isolated infrastructure. From $2.99/mo.
Pricing Comparison
InboxKit$2.70/mailbox · 100 mailboxes · annual
Agency plan (30 included) + 70 extra at $2.70/mb
$3.99/mailbox · 100 mailboxes · annual
Pricing Verdict: InboxKit's Google Workspace at $2.99/mo annual is cheaper than Infraforge's $3/mo annual base price. The cost gap widens significantly with Infraforge's add-ons: a setup with 50 mailboxes and 1 dedicated IP costs $249/mo on Infraforge ($150 mailboxes + $99 IP) versus $125/mo on InboxKit. InboxKit's real Google accounts already carry Google's IP reputation.
Infrastructure and Deliverability
Real Accounts, No IP Add-on Needed
InboxKit's Google Workspace and Microsoft 365 accounts already run on Google's and Microsoft's infrastructure with their IP reputation. No need to pay $99/mo per dedicated IP because the accounts inherit the platform's trusted sender reputation.
Lower Total Cost of Ownership
InboxKit at $2.99/mo annual includes DNS automation, InfraGuard monitoring, and inbox placement testing. Infraforge at $3/mo annual plus $99/IP, $2/domain SSL, and $7-9/workspace Masterbox can cost 3-4x more for equivalent functionality.
InfraGuard Monitoring Included
Blacklist checks every 6 hours, DNS change detection, and bounce tracking are included at no extra cost. Infraforge does not include comparable monitoring in its base product.
Unlimited Inbox Placement Testing
Built-in testing across Gmail, Outlook, and Yahoo helps identify deliverability issues before they impact campaigns. Infraforge does not offer inbox placement testing.
No Minimum, No Add-on Complexity
InboxKit has no minimum purchase and no separate add-ons for core features. Infraforge requires 10 mailbox minimum and charges separately for dedicated IPs, SSL, domain masking, and Masterbox.
InboxKit dashboard — 18M+ emails, 5,039 domains, 16,754 mailboxes for a single client
Infraforge homepage
Pros & Cons
InboxKitStrengths
- Real Google/Microsoft accounts vs dedicated-IP SMTP
- Monitoring, warmup, placement testing all built-in
- Simpler pricing — no separate IP costs
- 24+ sequencer integrations
Limitations
- No dedicated IP customization option
- No domain masking feature
Strengths
- Dedicated IP addresses with full control
- Part of Salesforge ecosystem
- Good for users who need IP-level customization
Limitations
- $3/mailbox/mo + $99/IP setup — adds up fast
- Not real Google/Microsoft accounts
- No built-in monitoring or placement testing
- Requires separate products for warmup
Who Should Choose What
Infraforge is built for users who want dedicated IP addresses and full infrastructure control, particularly agencies that need whitelabel capabilities. InboxKit takes a different approach: real Google and Microsoft accounts that inherit platform-level sender reputation, eliminating the need for expensive dedicated IPs. For most cold email use cases, InboxKit's real accounts with built-in monitoring deliver better value than Infraforge's infrastructure-plus-add-ons model.
Got questions? We've got answers.
Dedicated IPs give you complete control over your sender reputation, which matters if you send high volumes and want to isolate your reputation from other senders. However, real Google Workspace accounts on InboxKit already benefit from Google's trusted infrastructure, which most recipients' mail servers treat favorably.
For 50 mailboxes with 1 dedicated IP, SSL, and Masterbox: $150 (mailboxes) + $99 (IP) + $100 (SSL for 50 domains) + $7 (Masterbox) = $356/month. InboxKit for 50 Google Workspace mailboxes: $125/month with monitoring and inbox testing included.
InboxKit provisions real Google Workspace and Microsoft 365 accounts that send through Google's and Microsoft's infrastructure. This means your emails benefit from their established sender reputation, which is often more effective than a new dedicated IP that needs to build reputation from scratch.
Yes, InboxKit offers whitelabel capabilities for agencies, similar to Infraforge. Both platforms support reselling infrastructure under your own brand.
Infraforge provides pre-warmed infrastructure, meaning mailboxes have some warming before delivery. InboxKit offers both pre-warmed accounts and Isolated Warmup ($3/mailbox/month add-on) for ongoing reputation building.
For very high volumes, Infraforge's dedicated IPs give more control over throttling and reputation management. For most B2B cold email campaigns (under 50,000 emails/month), InboxKit's real Google accounts typically achieve higher inbox placement because of Google's trusted infrastructure.
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Ready to try InboxKit?
Dedicated US IPs. Isolated infrastructure. Real Google & Microsoft accounts from $2.99/mo.