Activate Email Validation to have MailGun validate your new emails automatically inside of HighLevel. NOTE - activating email validation in HighLevel will incur costs from MailGun in your MailGun account. Check MailGun for pricing.
We will re-validate all emails every two months as emails go valid/invalid from time to time.
How to enable Email validation in HighLevel:
1. Go to Agency Mailgun Settings > https://app.gohighlevel.com/settings/mailgun
Click on Switch to Agency View
Click on Settings
Click on Mailgun
Enable Email Validation here