Understand Campaign Verification in Omnisend

To protect your sender reputation and maintain high deliverability, Omnisend verifies your Email Campaign before sending it to your full contact list. This automated process ensures your emails reach engaged contacts and reduces the risk of bounces, spam complaints, or unsubscribes.

In this article, you'll learn when campaign verification is triggered, how it works, and what to do if your campaign is paused.

To ensure your sender reputation stays intact, Omnisend uses an automated verification process that can be triggered if:

This is an automated process that protects your sender reputation. Once verification completes (typically within 60 minutes), your campaign sends automatically.

Step 1. When your campaign is being verified, we send it to a small group of your contactsab – out 1,000 recipients, regardless of your segment size.

Step 2. We monitor the results for one hour, checking metrics every two minutes. If bounce rate stays below 7%, spam complaints stay under 3, and unsubscribe rate stays below 2%, your campaign continues automatically.

Step 3. If metrics look good, you don't need to take any action. The rest of your campaign will be sent immediately after the 60-minute window.

Step 4. If bounce or spam rates are high, we'll ask you to review your contact list and remove old, inactive contacts.

Step 5. If metrics exceed safe limits, we pause the campaign and display a notification in your account. Follow the on-screen wizard to clean your contact list. Sending on your account will be temporarily paused until you resolve the issue. You can also contact our Support team at any time.

Timing: The verification process takes 60 minutes. Once verification completes and metrics pass, your campaign sends within minutes.

If Verification Fails:

If you see a message that email sending is paused, our system detected unusual metrics (high bounce or spam rate). This is different from verification. Read more about Paused email sending or contact our support.

How long does campaign verification take?

Verification takes 60 minutes. During this time, we send your campaign to about 1,000 recipients and monitor metrics every 2 minutes. Once the hour is complete and metrics are within safe limits, the rest of your campaign sends automatically within minutes.

My campaign shows "Paused." Is something wrong?

Not necessarily. A yellow "Paused" status means your campaign is undergoing verification (normal and expected). A red "Paused" status means verification failed or your account was suspended. Check for on-screen notifications and follow any prompts to resolve issues.

What happens if my campaign fails verification?

If your campaign exceeds safe limits (bounce rate >7%, spam complaints >3, or unsubscribe rate >2%), Omnisend pauses it and notifies you in-app. You'll be guided through a wizard to clean your contact list. After cleaning, copy the paused campaign and resend it to a new, cleaned segment. The copied campaign will undergo verification again.

Can I skip or speed up the verification process?

No. Campaign verification is an automated, mandatory process that cannot be skipped, expedited, or manually approved by support. It protects your sender reputation and ensures email deliverability. Wait for the full 60 minutes to complete.

Why is my campaign being verified even though I've sent campaigns before?

Verification can be triggered for existing senders if: (1) your last campaign was sent more than 90 days ago, (2) your current campaign targets 20% more contacts than previous campaigns, or (3) you recently uploaded a large number of new contacts. This protects your sender reputation when your sending pattern changes.

Is campaign verification the same as sender email verification?

No. Sender email verification (clicking a link in a verification email) confirms your email address and must be completed before sending any campaigns. Campaign verification (this article) is an automated 60-minute metric check that happens after you click "Send" on a campaign. Both are separate processes. Learn more about setting up your email domain.