Email Blacklist Checker – Check Domain & IP Reputation
beingoptimist.in
Check if your domain or server IP is listed on Spamhaus, Spamcop, Barracuda, SORBS, and other major blacklists. Free real-time email blacklist checker tool.

I was trying to figure out why some emails randomly end up in spam even when everything seems set up correctly.

Turns out, even if your domain looks fine, your server IP can be listed on email blacklists, which affects deliverability a lot.

I checked mine and it showed a clean reputation (not listed on major blacklists), along with a quick breakdown and next steps like SPF/DKIM/DMARC.

I’ve been using this for quick checks:

beingoptimist.in/tools/email-security/email-blacklist-checker/

Has anyone else run into this issue? What ended up fixing it for you?