SuperWarmGet started
Gmail & Outlook warming, done for you

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.

Start warmingSee pricing

Free for up to 10 mailboxes · $49/mo unlimited · Cancel anytime

How it works

Mailbox warming gradually builds sender reputation on new Gmail and Outlook inboxes before you send at volume. 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

Send more email from a mailbox that ISPs already trust. Fewer spam-folder surprises when you go live.

Sender reputation shouldn't be a side project

New mailboxes fail when they 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 more mailboxes.

Free

Try it with a handful of inboxes

$0

  • Up to 10 mailboxes
  • Google & Microsoft OAuth connect
  • Automatic daily warming
  • Reputation dashboard
Get started free
Unlimited

Pro

Connect as many mailboxes as you need

$49/mo

  • Unlimited mailboxes
  • Google & Microsoft OAuth connect
  • Automatic daily warming
  • Reputation dashboard
Start unlimited

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 if you send email for work.
How long should I warm a mailbox?
Most mailboxes warm for 2-4 weeks before you send at higher 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 email tools?
Yes. SuperWarm only warms the mailbox. When reputation is ready, use the same inbox however you normally send — with any email tool you like.
Is SuperWarm affiliated with other email tools?
SuperWarm is a standalone warming product. Connect your mailbox, warm it, and send from it however you want.

Learn more

Deep dives on warming Gmail, Outlook, and how long to warm before you send more.

Ready to connect your mailboxes?

Warming starts automatically. $49/mo for unlimited. Free for up to 10 mailboxes.

Get started free