Letterhead's Recipient Validation

Recipient Validation is a built-in feature that helps ensure your subscriber list stays clean by verifying the validity of new email addresses.

What It Does

Once enabled, Recipient Validation runs automatically as a daily background process.

Here’s how it works:

• Automatically Validates New Subscribers
  Any email addresses added via import, embed form, or through your archive page will be automatically checked and validated before being added to your audience list.

• Runs Daily
  The validation process runs every 24 hours and only targets subscribers who haven’t already been validated.

• Reduces Risk & Maintains List Health
  This helps prevent sending to invalid or mistyped addresses, which can harm your sender reputation and increase bounce rates.

• Once an email is identified as invalid, the subscriber's status is updated to 'cleaned'.

What It Doesn’t Do

• Custom Signup Pages Are Not Supported
  Validation does not apply to email addresses submitted through custom-built signup forms.

• No Re-Validation of Existing Subscribers
  Once a subscriber is validated, they are not re-validated in future runs. Only new, unvalidated entries are checked.

Where to turn it on?

Organization-Level

When enabled at the organization level, Recipient Validation applies to all channels under your account. This is a good option if you want list protection across the board without managing settings individually per channel.

Channel-Level

You also have the flexibility to turn on Recipient Validation for a specific channel only. This is helpful if you want to test the feature on one channel first or only validate emails tied to certain newsletters.

Why Use It?

Enabling Recipient Validation helps:

• Improve your email deliverability

• Protect your sender reputation

• Avoid sending to invalid or fake addresses

• Reduce bounce-related suppression and email delivery issues

Where It Applies

Need Help?

If you have questions or need assistance, please contact our support team at support@tryletterhead.com or log a support ticket through the Help Center!