81.201.55.252
Neutral Activity
There is no recent abuse activity, or the IP address is whitelisted.
- ISP
- Member workstations
- Usage Type
- Fixed Line ISP
- ASN
- AS8251
- Hostname(s)
- router.misunp.klfree.cz
- Domain Name
- profinet.cz
- Country
- 🇨🇿 Czechia
- City
- Jenec, Central Bohemia
No reports in the last 60 days
81.201.55.252 has been reported 386 times. The most recent report is from .
The full history is preserved below and remains searchable. A 0% score reflects the absence of recent activity, but this is not a guarantee that earlier reports were invalid. Abuse confidence score decays, naturally, over time, when the abusive activity stops.
Abuse Reports
Total reports
386 from
86 distinct
reporters
First reported
Most recent report
| Reporter | IoA Timestamp (UTC) | Comment | Categories |
|---|---|---|---|
| 🇦🇺 j-tkrs |
SMTP brute forcing
|
Brute-Force | |
| 🇺🇸 hcinori |
Captured By Spam Filter
|
Email Spam | |
| 🇳🇱 sernate |
Part of distributed IMAP auth brute-force attack botnet.
|
Brute-Force | |
| Anonymous |
postfix sasl authentication failure blocked by fail2ban
...
|
Brute-Force | |
| Anonymous |
$f2bV_matches
|
Brute-Force | |
| 🇩🇪 ps-center |
LT: Brutforce SMTP Login
|
Brute-Force | |
| 🇮🇹 www.tana.it |
SMTP auth dictionary attack
|
Brute-Force | |
| Anonymous |
Dec 15 20:15:19 ns3130050 postfix/smtpd[24658]: warning: ip2.patt.klfree.cz[81.201.55.252]: SASL LOGIN authentication failed: authentication failure
...
|
Brute-Force Web App Attack | |
| 🇱🇮 aerobeta.li |
f2b trigger Multiple SASL failures
|
Email Spam | |
| 🇬🇧 Paul Smith |
Email Auth Brute force attack 1/1 in last day
|
Brute-Force | |
| Anonymous |
IMAP password guessing
|
Brute-Force | |
| 🇳🇱 sernate |
Part of distributed IMAP auth brute-force attack botnet.
|
Brute-Force | |
| Anonymous |
Dec 14 17:50:48 ns3104219 postfix/smtpd[19205]: warning: ip2.patt.klfree.cz[81.201.55.252]: SASL LOGIN authentication failed: authentication failure
...
|
Brute-Force Web App Attack | |
| 🇩🇪 Ouroborus |
|
Brute-Force | |
| 🇬🇧 D3monite |
Attempted Brute Force (dovecot)
|
Brute-Force |
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