# How Revnu Keeps Your Emails Out of Spam

> How Revnu lands your emails in the inbox and protects your domain. It builds and warms up dedicated sending inboxes, paces every mailbox with smart limits, checks every address before it sends, and pauses a mailbox the moment anything looks off.

Canonical: https://revnu.com/docs/deliverability
Last updated: 2026-10-18

Revnu is built to land your emails in the inbox and keep your domain's reputation spotless. You don't need to know anything about deliverability. Revnu handles all of it, from buying and warming up your sending inboxes to pacing every email and pausing a mailbox the moment anything looks off.

## How does Revnu keep my emails out of spam?

Every email goes through the same protections:

- **Dedicated sending inboxes.** Revnu buys domains that look like yours, sets up proper sending inboxes on them and warms them up before they send a single cold email. Your real domain stays untouched.
- **Smart sending limits.** Each inbox sends a few emails a day, spread out through business hours, the way a real person sends. Volume grows by adding inboxes, never by pushing one harder.
- **Every address checked first.** Revnu verifies each address before sending and holds back any that would bounce, so your bounce rate stays low.
- **Real-time monitoring.** Revnu watches bounces, provider refusals and sending errors on every mailbox, and pauses one automatically the moment the numbers move.
- **Instant stops.** A reply, a bounce or an unsubscribe ends that person's sequence straight away.
- **Plain, personal copy.** Every email is written for one person, with no spammy templates or link-stuffed blasts.

Inbox placement is decided by Google and Microsoft, and no one can control their filters. What Revnu controls is every signal those filters read: sending pace, bounce rate, domain setup and copy. It keeps all of them in the healthy range for you.

## What does Revnu set up for me?

When you approve sending inboxes, Revnu does the whole setup:

### 1. Buys lookalike domains

Domains close to your brand, such as your name with "get" or "try" in front. Anyone who visits one is sent on to your real website.

### 2. Creates the inboxes

Proper sending mailboxes on those domains, with names that match your team.

### 3. Sets up authentication

SPF, DKIM and DMARC records, so receiving mail servers can confirm the emails really come from you.

### 4. Warms them up

Each new inbox goes through warm-up and delivery checks in the background before it sends any outreach. Meanwhile Revnu builds your lead list and gets your sequence ready, so you're ready to go the moment warm-up ends.

Revnu pays for the domains and inboxes within your plan's monthly limit, and nothing is bought until you approve the proposal in **Review**. See [sending inboxes Revnu buys](/docs/sending-inboxes).

## How many emails does each inbox send?

| Inbox | Daily pace |
|---|---|
| Sending inboxes Revnu sets up | 3 a day each by default, never more than 5, on weekdays inside business hours |
| A Gmail or Outlook mailbox you connect (Pro) | Up to 50 a day and 20 an hour, at least a minute apart |

Need more volume? Revnu adds inboxes rather than pushing any one of them harder, which is the safest way to grow. See [how many emails Revnu sends a day](/docs/email-sending-limits).

## Can I send from my own Gmail or Outlook?

Yes, and it can send the same day. Revnu applies the same smart limits, address checks and monitoring to a mailbox you connect.

| Option | When it can send | Best for |
|---|---|---|
| Your main work address | The same day | Getting started fast, at a few emails a day |
| A second mailbox on a separate domain you own | The same day | Same-day sending, kept apart from your main domain |
| Sending inboxes Revnu sets up | After warm-up | Growing volume with your real domain fully protected |

Most customers start with their own address and add Revnu's inboxes as volume grows. To connect a mailbox, see [connect Gmail or Outlook](/docs/connect-email).

> **Tip:** Connect a mailbox that has been sending normal email for a while. Email providers trust an established mailbox more than one created this week.

## When does Revnu pause a mailbox?

Revnu pauses a mailbox automatically, before a small issue can become a reputation problem:

| What it notices | Pause |
|---|---|
| 5% or more of recent emails bounced, once it has sent at least 20 | 3 days |
| The email provider refused to send 3 times in 24 hours | 3 days |
| The provider limited sending, or the connection needs signing in again | 1 day |
| 3 sending errors in a row | 6 hours |

Emails that were waiting move to after the pause, and sending resumes on its own. Revnu messages you right away when your email provider blocks a mailbox, or when a mailbox needs signing in again. For any other pause, ask Revnu "is any of my mailboxes paused, and why?"

## What happens with unsubscribes and bounces?

- **Unsubscribes.** Every email from Revnu's sending inboxes carries an unsubscribe option. Anyone who uses it, or replies asking to be removed, goes on your block list for good. See [keep people off your outreach](/docs/exclude-contacts).
- **Bounces.** The contact is marked **Bounced** on **Leads** and nothing more goes to that address. "Undeliverable" notices from Outlook and Microsoft 365 count as bounces, never as replies.

## Questions about deliverability

**What if Google or Microsoft blocks a mailbox?**

It's rare, and Revnu catches it fast. If a provider refuses mail from an address 3 times in 24 hours, Revnu pauses that mailbox for 3 days so the rest of the queue is protected, and messages you.

Your email admin then releases the address:

- **Microsoft 365**: under **Restricted entities** in the Microsoft Defender portal.
- **Google Workspace**: in the alert center in the Google Admin console.

In the meantime, Revnu keeps sending from your other inboxes.

**Should I set up SPF, DKIM and DMARC on my own domain?**

On the domains Revnu buys, it sets all three up for you. For your own domain, most email providers set them up already. Ask whoever runs your email to confirm, and you're covered.

## Next step

Let Revnu [set up your sending inboxes](/docs/sending-inboxes), or [connect Gmail or Outlook](/docs/connect-email) to send today.

## Frequently asked questions

### Will Revnu's emails go to spam?

Revnu is built to land in the inbox. It sends from warmed-up, fully authenticated inboxes at a human pace, checks every address before sending, writes every email for one person, and pauses a mailbox automatically if bounces or provider refusals appear.

### Will connecting my Gmail get my domain blacklisted?

Revnu protects your domain with smart limits of 50 emails a day and 20 an hour, address checks before every send and automatic pauses if bounces climb. To keep cold email fully separate from your main domain, let Revnu set up sending inboxes on lookalike domains.

### Does Revnu warm up my inboxes?

Yes. Every sending inbox Revnu sets up goes through warm-up and delivery checks before it sends any outreach, and Revnu prepares your leads and sequence in the meantime.

### Why does Revnu use domains that look like mine?

So all cold email runs on dedicated domains and your real domain stays reserved for customers and your team. Anyone who visits a lookalike domain is sent to your real website, and nothing is bought until you approve.

### How many cold emails a day is safe?

Revnu sets the pace for you: 3 to 5 a day per sending inbox it sets up, and up to 50 a day from a mailbox you connect. To send more, Revnu adds inboxes rather than pushing one harder.

### What happens if too many emails bounce?

Each bounced contact is marked Bounced and never emailed again. If 5% or more of a mailbox's recent emails bounce, once it has sent at least 20, Revnu pauses that mailbox for 3 days. Ask Revnu which mailboxes are paused and why.

### Does Revnu set up SPF, DKIM and DMARC?

Yes, on every domain it buys for you. For your own domain, your email provider usually has them set already.