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Blacklist Monitoring · PSBL

Listed on PSBL? You Can Remove It Yourself

The Passive Spam Block List lists IPs that send mail to its spam traps. It's on by default in SpamAssassin, so a listing quietly pushes your mail toward spam folders on any server running a recent SpamAssassin. The fix is quick.

Examples:

Remove It Now

Use the removal form at psbl.org. It's free, instant, and open to anyone, and the listing is gone from PSBL's servers within about half an hour. If you do nothing, the listing expires a few weeks after the spam stops.

Then Stop It Coming Back

Removal doesn't stop a relisting. If your IP keeps sending to PSBL's traps, it goes straight back on. The listing page shows the trap hits, which usually points to the cause: a hacked account, an infected machine, or a list with dead addresses.

Monitor It Instead

Don't Play Whack-a-Mole

Generator Labs checks your IPs against PSBL and 150+ other data sources and alerts you by email, Slack, SMS, or webhook every time a listing appears, so a relisting never goes unnoticed. Free for your first host.

Listing detail with the data source and its delisting steps
Alert · Slack #mail-ops
203.0.113.25 listed on PSBL
Delisting steps attached

Frequently Asked Questions

About PSBL listings.

Still have questions? Our support team is ready to help. Contact Us
Does PSBL charge for removal?

No. It's free and instant.

How long does a PSBL listing last?

A few weeks after your IP stops hitting the traps, if you don't remove it yourself.

Why does PSBL affect my mail?

SpamAssassin checks it by default, so many mail servers use it without anyone turning it on.