Blacklist checker
Find out if your sending IP or your domain is on an email blacklist. A single listing can quietly push all your mail into spam.
If you're listed
1. Find the cause
A hacked mailbox, an old email list full of dead addresses, or sending too much too fast from a new domain.
2. Stop it
Change passwords, pause the campaign and clean your list. Asking for removal before this just gets you listed again.
3. Request removal
Each blacklist has a lookup and removal page on its website. Most remove you within a day.
Questions
What does it mean to be blacklisted?
A blacklist is a public list of IPs or domains seen sending spam. Mail servers look them up before accepting an email, so a listing can send your mail to spam or get it rejected.
How do I get removed from a blacklist?
First stop whatever caused it: a hacked account, a bad list, or sending too fast from a new domain. Then use the removal form on the blacklist's website. Most lists remove you within a day once the spam stops.
Why does a list show 'couldn't check'?
Some lists, Spamhaus in particular, refuse lookups that come through large public DNS servers. That isn't a listing. You can check those directly on the list's own website.
I use Gmail or Outlook to send. Does my IP matter?
Less. Your mail goes out from Google's or Microsoft's servers, so their IPs are what get checked. Your domain's reputation still matters, so check the domain.
More free checks
Keep your reputation clean
Warm up new domains slowly and spread sending across accounts. Our warmup service does the first part for you.