Dnia 30.04.2024 o godz. 14:05:00 Stefan Bauer via mailop pisze:
Wow. Indeed. Thank you. The ip is 217.160.0.245 and yes, the complete ASN
is blocked.
On 30.04.24 14:18, Jaroslaw Rafa via mailop wrote:
That's why nobody should treat UCEPROTECT seriously (also due to highly
suspicious behavior of the people who run this blacklist - their de-listing
practices are de facto a money extortion scheme), and even if someone
insists to use it, only Level 1 is worth anything.
That's mentioned in pretty much any guide, FAQ or article regarding use of
RBLs...
OTOH, UCEPROTECT-L3 is a strong sign there's something bad with the ISP
and/or its customers (same as UCEPROTECT-L2).
Of course you should only use it at SMTP level if feel your mission is to
educate ISPs (or, not use it as decisive, just one of signs).
The ISP in question should prevent its users from spamming, one of way is
blocking end-users from accessing port 25 outside (end-users should use
authenticated services like submission/587 or submissions/465).
Most of the time, only mail servers need port 25 access.
And my experience says the ISP into L3 gets individual IPs blocked more
easily - it seems that some companies use indices like this to make faster
decision about blocking individual IPs.
--
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