S5H Blacklist Check
A small list of addresses seen sending spam to its traps. Check an IP below against this and other blocklists and threat feeds.
- Free
- No Sign-Up
- Live Lookup
Examples:
IP Reputation Checker
About S5H
ListS5H
What It ListsA small list of addresses seen sending spam to its traps
Checked HereYes, live
RemovalEntries expire once the spam stops; check its website for removal
A small list of addresses seen sending spam to its traps.
Getting delisted: Entries expire once the spam stops; check its website for removal.
Always find the cause first: a compromised account, an infected server or a customer's VM sending spam. An address that keeps sending is listed again within hours.
Questions
How do I get removed from S5H?
Entries expire once the spam stops; check its website for removal.
Why is my IP on S5H?
Something on that address sent mail or traffic that hit the list's traps or reports: a compromised account, malware, an open relay, or a previous user of the address.
Free Tools
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IP Reputation CheckerCheck an IP against spam blocklists and threat feeds at once.SPF CheckerValidate an SPF record and count its DNS lookups against the limit of 10.Reverse DNS LookupPTR record for an IP, and whether it is forward-confirmed.IP & ASN LookupWhich network owns an IP: ASN, name, prefix, country and registry.
Keep your IPs off blocklists
Frabs stops spam, scans and floods at the VM's network interface, so one customer can't get your whole range listed.