Here are a few reasons why we might not be able to verify the sender’s email address:
If you receive a warning about a message that does not match any of the descriptions above, please ask the sender to report this to his or her email provider.
If you're an email provider and messages from your domain are receiving warnings on Facebook, please visit our Postmaster resource page.
- You subscribed to a mailing list.
- You have another account set up to automatically forward mail to your account.
- The email you received was spoofed.
If you receive a warning about a message that does not match any of the descriptions above, please ask the sender to report this to his or her email provider.
If you're an email provider and messages from your domain are receiving warnings on Facebook, please visit our Postmaster resource page.