Cold Emails.
Warm Inboxes.
Build sender reputation automatically.
Land in the inbox. Not the spam folder.
New email accounts have zero reputation. Send cold emails too fast and you'll hit spam immediately.
Our warmup fixes that. Automatically.
New Email Account + Cold Outreach =
Spam Folder. Every Time.
Day 1
You create a new email account. It has zero sender reputation.
Day 2
You send 100 cold emails. Gmail/Outlook see an unknown sender blasting emails.
Day 3
Your emails start hitting spam. Recipients mark you as spam. Reputation tanks.
Day 4+
Your domain is burned. Even good emails go to spam. Game over.
This is why 90% of cold email campaigns fail.
Not because of bad copy. Because of bad infrastructure.
How Email Warmup Works
We simulate real email activity to build your sender reputation
before you ever send a cold email.
We start with 5-10 emails per day. Your new mailbox begins exchanging real emails with our warmup network of thousands of real inboxes.
Volume increases to 10-20 emails per day. Gmail and Outlook start recognizing your domain as a legitimate sender.
Now sending ~30 warmup emails daily per inbox. Your sender reputation is established. You're ready for cold outreach.
Warmup continues in the background even while you send cold emails. Your reputation stays protected forever.
Not Fake Opens.
Real Email Conversations.
Some warmup services just fake open rates. That doesn't fool Gmail. Our warmup network consists of thousands of real inboxes that send, receive, open, read, and reply to your emails.
Watch Your Reputation Grow
Real-time dashboard shows warmup progress, inbox placement, and sender score.
Warmup Continues Forever.
Even While You Send.
Most services stop warmup when you start sending. That's a mistake. Our warmup continues in the background, maintaining and protecting your reputation while you run cold outreach campaigns.
Not All Warmup Is Created Equal
See why our warmup actually works when others don't.
| Feature | Basic Warmup | Rocket Agent |
|---|---|---|
| Real email conversations | ||
| Automatic volume scaling | ||
| Continues while sending | ||
| Auto-recovery from dips | ||
| Integrated with sending | ||
| Real-time monitoring | Limited | |
| Multi-provider network | ||
| Smart rotation |
To full warmup
After warmup complete
Real inboxes in network
Continuous warmup
Warmup Questions Answered
Everything you need to know about email warmup.
Why can't I just start sending cold emails?
New email accounts have zero sender reputation. Email providers like Gmail and Outlook will immediately flag high-volume sends from unknown senders as spam. Warmup builds reputation first so your cold emails actually reach inboxes.
How long does warmup take?
Typically 14 days for full warmup. You can start light sending (10-20 emails/day) after 7 days. Full capacity (100+ emails/day per mailbox) is reached around day 14.
What happens during warmup?
Your mailbox exchanges real emails with thousands of inboxes in our warmup network. These emails are opened, read, and replied to—creating positive engagement signals that build your sender reputation.
Does warmup continue while I send cold emails?
Yes! Unlike other services, our warmup continues in the background even while you're running cold outreach campaigns. This maintains your reputation and helps recover from any dips.
What if my reputation drops?
Our system detects reputation drops early and automatically increases warmup intensity while reducing cold sends. In most cases, we recover your reputation without you even noticing.
Is warmup included in my plan?
Yes. Automatic warmup is included with every email infrastructure plan. No extra charge, no separate tool needed.
Stop Landing in Spam.
Start Warming Up.
14-day automatic warmup. Real conversations. 98% inbox rate.
Included with every mailbox. No extra charge.