On this page
vsInboxKit vs Mailforge: Real Accounts vs Shared-IP Infrastructure Compared (2026)
Mailforge offers the cheapest mailboxes in the market at $2/mailbox/month on annual billing, using shared-IP infrastructure. InboxKit provisions real Google Workspace accounts from $2.99/mo with dedicated US IPs, automated DNS via Cloudflare, and built-in InfraGuard monitoring. The core trade-off is price versus account authenticity: Mailforge mailboxes are not real Google or Microsoft accounts, while InboxKit provides official accounts with full admin access.
Mailforge homepage as of Apr 2026
Our Summary
Mailforge.ai is a bulk email infrastructure provider within the Salesforge ecosystem, which also includes Primeforge (Google/Microsoft accounts), Infraforge (dedicated IP infrastructure), and Warmforge (email warmup). Mailforge provisions mailboxes on shared IP addresses specifically for cold email campaigns, claiming a 5-minute setup time and serving over 10,000 businesses.
The platform focuses on volume and cost efficiency, offering mailboxes at $3/month on monthly billing or $2/month on annual plans, with a minimum of 10 mailbox slots. Mailforge reports that 200 mailboxes cost $484/month on their platform versus $1,680/month buying Google Workspace directly. They carry a 4.9 user rating.
Mailforge includes automated DNS configuration, bulk DNS updates, domain transferring, multiple workspaces, and SSL with domain masking. However, it works on shared infrastructure, meaning mailboxes are not official Google Workspace or Microsoft 365 accounts. For the complete Salesforge stack (real accounts, dedicated IPs, warmup), users need to purchase multiple separate products.
Feature Comparison
| Feature |  InboxKit | |
|---|---|---|
| Infrastructure | ||
| Account Type | Real Google Workspace & Microsoft 365 | Shared-IP mailboxes (not real Google/Microsoft) |
| IP Addresses | Dedicated US IPs | Shared IPs |
| Admin Panel Access | Full Google/Microsoft admin per domain | Mailforge dashboard only |
| Pricing | ||
| Starting Price (Annual) | $2.99/mailbox/mo | $2/mailbox/mo |
| Minimum Purchase | No minimum | 10 mailbox slots |
| Monitoring & Deliverability | ||
| Domain Monitoring | InfraGuard: blacklist every 6h, DNS watching, bounce tracking | Not included |
| Inbox Placement Testing | Unlimited testing included | Not included |
| Email Warmup | Built-in Isolated Warmup ($3/mb/mo) | Requires Warmforge (separate product) |
| Integrations & API | ||
| Sequencer Integrations | 24+ native (Instantly, SmartLead, Apollo, etc.) | Works with any sending software |
| API & Webhooks | Full REST API + webhooks | API available |
| Master Inbox | Unified view across all mailboxes | Not included |
| Setup & Management | ||
| DNS Setup | Automated SPF/DKIM/DMARC via Cloudflare | Automated DNS setup |
| Setup Time | Under 60 seconds | ~5 minutes |
| Bulk Management | 500+ mailboxes from one dashboard | Multiple workspaces supported |
| Domain Masking / SSL | Not included | SSL & domain masking 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
$2.00/mailbox · 100 mailboxes · annual
Pricing Verdict: Mailforge wins on raw per-mailbox cost at $2/mo annual versus InboxKit's $2.99/mo for Google Workspace. However, Mailforge mailboxes are shared-IP and not real Google/Microsoft accounts. If you need the full Salesforge stack (real accounts via Primeforge at $3.50/mo, dedicated IPs via Infraforge at $3/mo + $99/IP), the total cost exceeds InboxKit's all-in-one pricing.
Infrastructure and Deliverability
Real Google and Microsoft Accounts
InboxKit provisions official Google Workspace and Microsoft 365 accounts, not shared-IP mailboxes. Real accounts carry the sender reputation of Google and Microsoft infrastructure, which directly impacts inbox placement rates.
All-in-One Platform
DNS automation, warmup, domain monitoring (InfraGuard), and inbox placement testing are all built into one dashboard. With Mailforge, you need separate products — Primeforge for real accounts, Warmforge for warmup, Infraforge for dedicated IPs — and none of them include domain monitoring.
InfraGuard Domain Protection
Automated blacklist monitoring every 6 hours, DNS change detection, and bounce rate tracking catch deliverability issues before they impact campaigns. Mailforge does not include comparable monitoring.
Unlimited Inbox Placement Testing
Test whether your emails land in inbox, spam, or promotions across Gmail, Outlook, and Yahoo. Mailforge does not offer inbox placement testing.
24+ Sequencer Integrations
Connect to Instantly, SmartLead, Apollo, Lemlist, Reply, Salesforge, and more. While Mailforge works with any sending software, InboxKit provides native integrations with one-click setup.
InboxKit dashboard — 18M+ emails, 5,039 domains, 16,754 mailboxes for a single client
Mailforge homepage
Pros & Cons
InboxKitStrengths
- Real Google Workspace & Microsoft 365 accounts with US IPs
- All-in-one: DNS, warmup, monitoring, placement testing
- InfraGuard blacklist checks every 6 hours
- No minimum purchase — buy exactly what you need
- 24+ native sequencer integrations
Limitations
- $0.50/mo more per mailbox than Mailforge on annual
- Isolated Warmup is a paid add-on ($3/mb/mo) — pre-warmed accounts available
- No domain masking/SSL feature
Strengths
- Cheapest per-mailbox cost at $2/mo annual
- Part of Salesforge ecosystem (Primeforge, Infraforge, Warmforge)
- Fast 5-minute setup with automated DNS
- SSL and domain masking included
Limitations
- Shared-IP infrastructure — not real Google/Microsoft accounts
- Warmup, monitoring, real accounts require separate Salesforge products
- 10 mailbox minimum purchase
- No inbox placement testing
Who Should Choose What
Mailforge is a strong choice if raw cost is your top priority and you're comfortable with shared-IP infrastructure that isn't real Google or Microsoft accounts. InboxKit costs $0.50/mo more per mailbox on annual Enterprise billing but provides official Google Workspace accounts with US IPs, built-in monitoring, warmup, and inbox placement testing in a single platform. For teams that value deliverability and account authenticity over the lowest possible per-mailbox price, InboxKit is the more complete solution.
Got questions? We've got answers.
No. Mailforge provisions mailboxes on shared-IP infrastructure, not official Google Workspace or Microsoft 365 accounts. InboxKit provides real Google Workspace and Microsoft 365 accounts with full admin access and dedicated US IP addresses.
Mailforge uses shared-IP infrastructure, which is less expensive to provision than real Google Workspace or Microsoft 365 accounts. At $2/mailbox/month annual, InboxKit's Google Workspace at $2.99/mo annual is only $0.50/mo more than Mailforge. The trade-off is account authenticity and sender reputation.
Yes. To get real Google/Microsoft accounts, you need Primeforge ($3.50-4.50/mo). For dedicated IPs, you need Infraforge ($3-4/mo + $99/IP). For warmup, you need Warmforge. InboxKit includes DNS automation, monitoring, warmup, and inbox placement testing in one platform.
Yes. You can set up new domains and mailboxes on InboxKit while keeping existing Mailforge accounts active. InboxKit's automated DNS setup via Cloudflare makes migration fast, often under 60 seconds per domain.
Yes. InboxKit integrates with 24+ sequencer platforms, including Salesforge, Instantly, SmartLead, Apollo, Lemlist, Reply, and more. You can connect via IMAP/SMTP credentials or app passwords.
Both handle scale well. Mailforge supports multiple workspaces and bulk DNS updates. InboxKit offers bulk management for 500+ mailboxes, InfraGuard monitoring across all accounts, and a unified Master Inbox view. The choice depends on whether you prioritize cost (Mailforge) or account quality and monitoring (InboxKit).
No, Mailforge does not include domain monitoring. None of the Salesforge ecosystem products (Mailforge, Primeforge, Infraforge, Warmforge) offer dedicated domain monitoring. Infraforge is for dedicated IP infrastructure, not monitoring. InboxKit includes InfraGuard with blacklist checks every 6 hours, DNS watching, and bounce tracking at no extra cost.
Keep Reading
Ready to try InboxKit?
Dedicated US IPs. Isolated infrastructure. Real Google & Microsoft accounts from $2.99/mo.