Free Tool
Email Blacklist Checker
Check whether your domain or mail-server IP is on a spam blacklist — a common, hidden reason business email ends up in the spam folder. Free, and no account needed.
Embed this tool on your website
Free to use on your own site — copy one snippet and it just works.
FAQ
About email blacklists
Why they matter and what to do.
Email landing in spam?
Deliverability problems are usually fixable. We set up business email properly on Google Workspace or Microsoft 365 — with the authentication records that keep you out of spam folders.