Real-time Klaviyo events flowing through Mail Ward validation

Screened By Mail Ward

Triggered for every email validation with detailed deliverability data.

Deliverability status
Quality score (0-100)
Domain information
Risk indicators

Suppressed By Mail Ward

Triggered when an email is automatically suppressed with reason details.

Suppression reason
Quality score at suppression
Timestamp
Threshold used

99.9%

Accuracy Rate

Industry-leading validation accuracy

< 50ms

Response Time

Average validation response time

24/7

Uptime

Continuous monitoring and protection

Instant Validation

Works with any Klaviyo flow - forms, popups, imports. No manual list cleaning needed

Klaviyo Events

Real-time reporting events sent to your Klaviyo account for easy segmentation

Secure & Reliable

OAuth integration with encrypted storage. Protect your sender reputation automatically

530K+

Spam profiles blocked

200+

Enterprise Businesses

99.9%

Accuracy

How It Works

Automatic in the background.

Unlike other solutions that require manual list cleaning, Mail Ward works automatically in the background.

1

Connect Your Klaviyo Account

Secure OAuth integration with your Klaviyo account. Set up webhook endpoints for real-time validation.

2

Works with Any Flow

Forms, popups, imports, API calls — any way contacts enter your Klaviyo lists gets validated instantly.

3

Automatic Protection

Invalid emails are automatically suppressed. Real-time events sent to Klaviyo for segmentation and reporting.

See it in action

From setup to insight in minutes.

Three quiet screens do most of the work. Connect once, tune the rules to your taste, then watch Mail Ward go.

Mail Ward dashboard showing webhook configuration with Destination URL and X-User-ID

Setup

Connect once, validate forever.

OAuth into Klaviyo, copy the webhook URL and X-User-ID into any flow, and Mail Ward starts validating every signup in real time. No manual list cleaning, no batch jobs.

Preferences page showing auto-suppression toggles and risky-score threshold

Configure

Tune the rules to your taste.

Choose which categories get auto-suppressed — undeliverable, risky, unknown — and pick a risky-score threshold. Mail Ward applies your settings instantly across every connected account.

Analytics page showing lifetime suppressions gauge with red, amber, and blue segments

Monitor

See the impact in real time.

Lifetime suppressions, monthly snapshots, and a clean visual breakdown of exactly what Mail Ward caught for you. Switch between gauge and bar views for proportions or precision.

Real-world results

Deliverability that climbs.

Real Klaviyo data from a Mail Ward customer — sender score climbing steadily once auto-suppression was enabled.

Klaviyo sender score chart showing deliverability improving after enabling Mail Ward

Why Mail Ward

The Only Real-Time Solution

While others require manual intervention, Mail Ward works automatically in the background.

The Old Way

Traditional Solutions

Manual list cleaning required

Batch processing only

No real-time protection

Separate workflow needed

Delayed validation results

Recommended

Mail Ward

Real-time webhook validation

Works with any Klaviyo flow

Automatic protection

Integrated workflow

Instant validation results