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Blacklist wiki · Widely used

S5H

S5H is an independent DNS blacklist that monitors for spam and abusive email sending. Listings are automated based on spam trap hits.

all.s5h.net
Zone
Widely used
Tier
By , email deliverability consultant
Author

At a glance

Zone
all.s5h.net
Tier
Widely used. Referenced by many corporate filters and ISPs, usually as one signal among several. A listing costs you some recipients, and a scan reports it as a warning.
What it lists
IP addresses detected sending spam to S5H monitoring networks.
Impact
Medium: used by some email administrators and spam filtering services.
How to check
Run your IP or domain through the blacklist checker, which queries this zone live.
How to delist
5 steps below, ending on the list's removal page.
Auto-expiry
Auto-expires within a few days after spam stops.

How to get delisted

  1. 01Visit s5h.net and check your IP status
  2. 02Listings typically expire automatically within a few days
  3. 03Stop any spam sources from your network
  4. 04Check for compromised accounts or scripts
  5. 05Contact S5H via their website if you believe it's a false positive
Open the removal formhttp://www.s5h.net/

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