# Email Verification

URL: https://promu.ai/email-verification
Last updated: 2026-10-14

> Promu verifies every address before it enters a campaign, with syntax, domain, mailbox and catch-all checks, so bounces never hurt your sender reputation.

**Only send to inboxes that exist.**

Bounces hurt your sender reputation. Promu checks every address before it enters a campaign, and flags risky ones before they cost you.

## Real-time checks

Syntax, domain, mailbox and catch-all detection on every address.

## Bulk cleaning

Upload any list and get it back sorted into valid, risky and invalid.

## Built into every campaign

Verification runs automatically, so nobody has to remember it.

## Protect the domain you worked for

Keeping bounce rates low is one of the simplest ways to stay out of spam folders. Promu does it quietly in the background.

## Clear verdicts

Every address gets a plain status and a reason, so you always know why it was kept or removed.

## Works well with

- [Lead Database](https://promu.ai/lead-database): Verified B2B contacts with buying signals
- [Deliverability](https://promu.ai/deliverability): Protection for your domain and inboxes
- [Inbox Placement](https://promu.ai/inbox-placement): Test where your emails land