Email warmup tool that ramps up and protects your own mailboxes
A new mailbox that sends hundreds of cold emails on day one looks like spam to mailbox providers. ColdReach protects your domain by pacing every connected mailbox. Sending volume ramps up gradually, rotation spreads the work across your mailboxes, each mailbox has a daily cap and a mailbox pauses on its own when bounces or complaints rise. All of it runs on your own mailboxes. ColdReach never sends from its own mail servers.
Google Workspace, Microsoft 365 or any SMTP and IMAP mailbox
Connect Google Workspace and Microsoft 365 mailboxes by OAuth, so ColdReach never stores your password. Any other mailbox connects by SMTP and IMAP. Sending goes out through your provider, under your domain, and replies come back to the same mailbox.
- OAuth for Google Workspace and Microsoft 365
- SMTP and IMAP for any other mailbox
- Replies from every mailbox collected in one inbox
Why your own mailboxes matter
When outreach goes through your own mailboxes, your domain builds its own sending history. You keep control of the accounts, and you can disconnect a mailbox at any time.
Volume that grows gradually
A newly connected mailbox starts with a low daily volume. ColdReach raises it step by step over the following days until the mailbox reaches the cap you set. If you connect a mailbox that already sends cold email, you can start it at a higher step.
- Low starting volume for new mailboxes
- Gradual daily increases toward your cap
- A starting step you choose for mailboxes with history
Daily caps per mailbox
Each mailbox has its own daily cap. Sequences never push a mailbox past it. When a campaign needs more volume than your mailboxes allow, the emails wait for the next day instead of overloading one account.
Sending spread across all connected mailboxes
Rotation spreads the emails of a sequence across your connected mailboxes, so no single mailbox carries the whole campaign. Each prospect keeps the same sender for every step of the sequence, so follow-ups stay in one thread.
- Even distribution across mailboxes
- One sender per prospect for the whole sequence
- Add a mailbox and rotation includes it within its own ramp-up
Automatic pause when bounces or complaints rise
ColdReach watches bounces and complaints on each mailbox. When they rise, that mailbox pauses on its own while the others continue. You see why it paused and decide when to resume. Clean lists help, which is why every contact passes the email verifier first.
One email warm up service inside your outreach tool
A separate email warm up service is another subscription and another dashboard. In ColdReach the pacing is built into sending, so the same tool that builds the list, verifies it and writes each email with the ai sdr also decides how fast each mailbox sends. The full five steps are on the cold outreach automation page.
Compliance built into every email
Every email carries an unsubscribe link, and unsubscribes are suppressed immediately across all mailboxes. For CAN-SPAM, you supply a valid physical postal address in your signature settings.
How many mailboxes each plan rotates
Each plan includes a number of connected mailboxes. On Scale and Enterprise the number of active sequences has no cap, and sending is still limited by the daily cap of each mailbox. Compare every plan on the cold email software pricing page.
| Plan | Connected mailboxes | Monthly | Yearly per month |
|---|---|---|---|
| Starter | 3 | $49 | $24 |
| Growth | 15 | $149 | $74 |
| Scale | 50 | $499 | $249 |
| Enterprise | 150 | $1,499 | $749 |
Questions
Does ColdReach send from its own servers
No. ColdReach sends only from the mailboxes you connect, by OAuth for Google Workspace and Microsoft 365, or by SMTP and IMAP for any other mailbox.
How long does ramp-up take
Ramp-up raises volume step by step over several days until the mailbox reaches the daily cap you set. A mailbox with sending history can start at a higher step.
What happens when a mailbox pauses
Its emails stop while your other mailboxes continue within their caps. You see the reason for the pause in the app and choose when to resume.
Can I connect mailboxes on different domains
Yes. Connect mailboxes on several domains, and rotation spreads sending across all of them within each mailbox cap.
Connect your first mailbox today
Create your account, connect a mailbox and let ColdReach pace your sending from the first day.