Warmforge vs Warmy in 2026: which one actually fits your stack

Warmforge vs Warmy: Side-by-Side Comparison

Warmy is the stronger pick for most cold email teams in 2026. Its warmup network is significantly larger than Warmforge's, it includes spam testing that Warmforge doesn't offer, and its per-inbox cost drops at 5+ inboxes. Warmforge only wins on price at 1-2 inboxes.

How Big Is Each Warmup Network?

Warmy's warmup network includes 40,000+ real inboxes, per Warmy's product page. Warmforge's network is a fraction of that. A larger network means your inbox swaps emails with more unique addresses, which builds sender reputation faster and signals legitimacy to Gmail and Outlook filters in less time.

For new domains, this gap is everything. Warming a fresh domain on Warmforge can take twice as long to hit safe sending volume. That's real pipeline delay for any outbound team, not a minor technical footnote.

Warmforge works fine for established domains doing maintenance warmup. For new infrastructure, Warmy's network size is the right call.

Does Either Tool Include Spam Testing?

Warmy includes a built-in spam checker and inbox placement tester across Gmail, Outlook, and Yahoo. Warmforge doesn't include spam testing at all. If you're running cold email, not knowing where your messages land before a campaign pushes out is a blind spot that costs reply rates and domain health.

Warmy shows inbox placement rates per provider before you start sending, per Warmy's feature documentation. That's data you can act on. Without it on Warmforge, you're warming your inbox in the dark and hoping the next campaign doesn't spike your spam rate.

The cost math: Warmforge at $19 plus a third-party spam tester like GlockApps at $19/month puts you at $38. You're within $11 of Warmy's $49 entry plan and managing two tools instead of one. Most teams don't run this calculation until they're three months deep.

Pricing: What You Actually Pay Per Inbox at Scale

Warmforge charges roughly $19/month per inbox at entry level, scaling linearly as you add accounts. Warmy bundles multiple inboxes per plan, so per-inbox cost drops as you scale. At 10 inboxes, Warmforge can hit $190/month versus Warmy's $99-149/month range, per each tool's current pricing page.

Break-even is around 4-5 inboxes. Below that, Warmforge is cheaper. Above it, Warmy's bundled pricing wins, and you get spam testing included. Most outbound teams manage at least 5 inboxes.

Who Should Use Warmforge

Warmforge is the right tool for solo founders or freelancers managing one or two inboxes on a tight budget. Don't pay for features you won't use. If your domain is established, your volume is low, and you're already paying for deliverability testing elsewhere, Warmforge does the job at the lowest possible cost.

Choose Warmforge if you're warming 1-2 inboxes and won't scale soon, your domain already has warmup history, you have a separate deliverability testing tool, or budget is your hard constraint and feature depth doesn't matter yet.

Who Should Use Warmy

Warmy fits any team running 3+ inboxes that needs warmup and deliverability diagnostics from one tool. The larger network, built-in spam testing, and detailed reporting justify the higher entry price for anyone running serious outbound. If deliverability is a revenue dependency, Warmy is worth $30 more per month.

Choose Warmy if you're launching new domains, you manage 5+ inboxes, you want spam placement testing built in, or your pipeline is large enough that inbox placement directly affects booked meetings. At that point, the cheapest warmup tool is a false economy.

If you need the full outbound setup handled, from domain infrastructure to deliverability to campaign execution, Modern Inbound's managed outbound service covers it end to end.

Too Busy to Run Outbound Yourself?

Modern Inbound handles research, infrastructure, warm-up, account lists, copy tests, sending, replies, and routing. The system has booked 2,700+ B2B meetings and influenced $20M+ in pipeline.

Frequently Asked Questions

Is Warmforge cheaper than Warmy?

At 1-2 inboxes, yes. Warmforge starts around $19/month per inbox versus Warmy's $49/month entry plan. At 5+ inboxes, Warmy's bundled pricing closes the gap, and when you factor in spam testing you'd otherwise buy separately, Warmy is often cheaper at scale.

Does Warmforge include spam testing?

No. Warmforge covers email warmup only. You'd need a separate tool like GlockApps or MailTester to check inbox placement. Warmy includes a spam checker on all plans, per Warmy's feature documentation.

Which tool has a larger warmup network?

Warmy. Its network includes 40,000+ real inboxes, per Warmy's product page. Warmforge's network is smaller, which can slow reputation building for new domains and fresh sending addresses.

Can both tools warm any email provider?

Yes. Warmforge and Warmy both support Gmail, Outlook, and custom SMTP setups via IMAP/SMTP. Provider compatibility isn't a differentiator between these two tools.

Which is better for a new domain?

Warmy. Its larger warmup network builds domain reputation faster, and built-in spam testing confirms you're landing in primary inbox before you start sending. Warmforge works for maintenance warmup on established domains, not for building reputation from scratch.