// Email Blacklist Checker

Is your domain on an email blacklist?

If your domain is listed on a spam blacklist, your emails could be going straight to junk — or not being delivered at all. Check your domain against the most widely used blocklists.

Enter your sending domain — the part after @ in your email address.

How blacklists work: If your domain or mail server IP appears on a blocklist, receiving mail servers use that list to reject or flag your emails as spam. Common causes include sending spam, being hacked, or sharing a mail server with a bad actor.

Independently reviewed by our customers