Warm hundreds of mailboxes. One flat price.
Connect Google Workspace or Microsoft 365 via OAuth and let SuperWarm build sender reputation automatically. No manual work.
Free for up to 10 mailboxes · $49/mo unlimited · Cancel anytime
How it works
Three steps. No spreadsheets, no manual reply chains, no guessing.
Step 1
Connect your mailbox
Sign in with Google or Microsoft OAuth. We only need permission to send and receive warming emails.
Step 2
Warming runs automatically
SuperWarm exchanges natural-looking emails with our warming network to build inbox placement and domain reputation.
Step 3
Send with confidence
Ramp outbound volume on a mailbox that ISPs already trust. Fewer spam-folder surprises when you go live.
Sender reputation shouldn't be a side project
Cold outbound fails when mailboxes go from zero to hundreds of sends overnight. Warming is the unglamorous work that keeps you out of spam. SuperWarm automates it so you can focus on sending.
- Works with Google Workspace and Microsoft 365 / Outlook
- Gradual volume ramp that looks human to mailbox providers
- Open, reply, and mark-as-important signals included
- Per-mailbox dashboard so you know warming is active
- Scale from one mailbox to hundreds on the same plan
One price. Unlimited mailboxes.
Start free with 10 mailboxes. Upgrade when you're ready to connect your whole stack.
Free
Try it with a handful of inboxes
$0
- Up to 10 mailboxes
- Google & Microsoft OAuth connect
- Automatic daily warming
- Reputation dashboard
Pro
Connect as many mailboxes as you need
$49/mo
- Unlimited mailboxes
- Google & Microsoft OAuth connect
- Automatic daily warming
- Reputation dashboard
Need more than 10 mailboxes? Upgrade anytime. Cancel anytime.
Frequently asked questions
- How much does SuperWarm cost?
- Free for up to 10 mailboxes. Pro is $49/month for unlimited mailboxes. One flat price, no per-seat math.
- What happens when I hit the free limit?
- The free plan supports up to 10 mailboxes. Upgrade to Pro ($49/mo) to connect unlimited mailboxes.
- Do you offer support or onboarding?
- SuperWarm is fully self-serve. Connect mailboxes via OAuth and warming runs automatically.
- What mailboxes does SuperWarm support?
- Google Workspace (Gmail) and Microsoft 365 / Outlook mailboxes connected via OAuth. Personal @gmail.com accounts may work but we recommend workspace mailboxes for outbound sending.
- How long should I warm a mailbox?
- Most mailboxes warm for 2-4 weeks before ramping cold volume. SuperWarm gradually increases activity so providers see consistent, human-like sending patterns.
- Will warming emails look like spam?
- No. Warming messages are short, conversational, and exchanged within a controlled network designed to generate positive engagement signals like opens, replies, and inbox placement.
- Can I use SuperWarm with my existing sequencer?
- Yes. SuperWarm only warms the mailbox. When reputation is ready, connect the same inbox to whatever sending tool you use for campaigns.
- Is SuperWarm affiliated with other email tools?
- SuperWarm is a standalone warming product. Connect your mailbox, warm it, and use it with whatever outbound stack you prefer.
Ready to connect your mailboxes?
Warming starts automatically. $49/mo for unlimited. Free for up to 10 mailboxes.
Get started free