7 Best Infraforge Alternatives in 2026

Mailforge is Infraforge's sibling product within the Salesforge ecosystem, offering shared-IP mailboxes instead of dedicated IPs at a significantly lower cost. While Infraforge gives you IP-level control at $3/mb/mo + $99/IP, Mailforge provides shared infrastructure at $2/mb/mo annual with no IP fees. Both use custom SMTP — neither provides real Google or Microsoft accounts.

Pricing is $3/mailbox/month on monthly billing or $2/mailbox/month on annual, with a 10-mailbox minimum. Features include automated DNS, SSL certificates, domain masking, and multi-workspace support. The platform serves 10,000+ businesses with 5-minute setup times.

For teams already in the Salesforge ecosystem, Mailforge is the natural downgrade from Infraforge when dedicated IPs are not required. The trade-off is that shared IPs mean your sender reputation is influenced by other senders on the same infrastructure. Warmup still requires the separate Warmforge product, and monitoring needs Infraforge — so switching from Infraforge to Mailforge only saves on IP costs, not ecosystem complexity.

Inframail provides dedicated US-based IP addresses similar to Infraforge, but with a fundamentally different pricing model — unlimited inboxes at a flat monthly rate instead of per-mailbox charges. Built entirely on Microsoft cloud infrastructure, Inframail is designed for agencies that want IP control without the complexity of the Salesforge ecosystem.

The Unlimited Plan costs $129/month and includes 1 dedicated US IP with 80,000 emails/month capacity. The Agency Plan at $327/month provides 3 dedicated IPs and 300,000 emails/month. Compare this to Infraforge's $3/mb/mo + $99/IP model — at 50+ mailboxes, Inframail's flat rate becomes significantly cheaper. The platform includes Phantom Redirect technology and automated blacklist delisting with 68.3% success rate.

Inframail is Microsoft-only with no Google Workspace option, and the flat-rate model means small teams (under 20 mailboxes) pay more per inbox than with Infraforge. However, for teams that need dedicated IPs at scale, Inframail's unlimited model eliminates the per-mailbox cost that makes Infraforge expensive at volume.

Maildoso offers a completely different approach from Infraforge — high-volume SMTP mailboxes on shared infrastructure at the cheapest bulk pricing in the market, plus Google Workspace Combo plans for ESP diversification. With 400,000+ mailboxes and 10 million+ emails per day, Maildoso is built for volume over IP control.

SMTP pricing scales aggressively: 30 mailboxes for $75/month ($2.99/mb), 300 for $570 ($1.90/mb), and 10,000 for $12,000 ($1.20/mb). Combo plans pairing SMTP with Google Workspace start at 15+15 for $90/month ($3/mb each). The platform includes one-click Instantly/SmartLead integration, CAPTCHA protection, and API access. G2 4.7 rating from 159 reviews.

Maildoso trades IP control for cost efficiency. There are no dedicated IPs, no sender reputation isolation, and no domain monitoring suite. For teams leaving Infraforge who prioritized IP control, Maildoso is a significant downgrade in infrastructure control but a major upgrade in per-mailbox cost at scale.

Instantly is a full outreach platform, not a direct Infraforge competitor on infrastructure. However, for teams leaving Infraforge who want to simplify their stack, Instantly eliminates the need for separate infrastructure management by bundling sequencing, warmup, lead generation, and email accounts into one platform. With a 4.8 G2 rating from 3,200+ reviews, it has the largest community in cold email.

The Growth plan starts at $47/month with unlimited email accounts, 1,000 contacts, and 5,000 emails. Hypergrowth at $97/month supports 25,000 contacts and 100,000 emails. The Light Speed plan at $358/month adds the SISR inbox rotation system. A B2B lead database with 160M+ contacts costs $47.99/month additionally.

The trade-off versus Infraforge is total loss of infrastructure control — no dedicated IPs, no DNS management, no custom domain configuration. Email accounts are locked into the Instantly ecosystem. But for teams who found Infraforge's multi-product ecosystem too complex, Instantly's single-platform approach offers maximum simplicity at the cost of infrastructure control.

SmartLead is a multi-channel outreach platform that pairs well with any infrastructure provider, including as a replacement for Infraforge's sequencing needs. It handles email campaigns, LinkedIn outreach, cold calling, and AI-powered reply management through SmartAgents. SmartLead connects unlimited mailboxes on the Pro plan and above.

The Basic plan costs $39/month with 2,000 active leads and 6,000 emails. The Pro plan at $94/month supports 30,000 leads, 150,000 emails, and unlimited mailbox connections. The Custom plan at $174/month adds advanced features. SmartLead also offers SmartSenders for done-for-you mailbox provisioning, though pricing is not publicly transparent. G2 4.7 rating with mobile app.

SmartLead does not provision mailboxes — it is a BYOM (bring your own mailbox) platform. For teams leaving Infraforge, SmartLead works as the sequencing layer paired with a separate infrastructure provider like InboxKit. This gives you the best of both worlds: InboxKit's real Google/Microsoft accounts with US IPs for infrastructure, and SmartLead's multi-channel capabilities for outreach.