CF1760871188139-tsm20251017082432

IPLIST.NET - node21.mail4.pl

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node21.mail4.pl checked at 2025-10-19T10:53:08.123Z 354ms 31/31/31 100% R:7

AI analysis

node21.mail4.pl is the mail server for poczta.at.

With node21.mail4.pl, node31.mail4.pl is commonly used as a mail server.

node21.mail4.pl maps to IP address 137.74.3.137.

Other host names for instance mx1.mail4.pl and primary.mail4.pl share IP numbers with node21.mail4.pl.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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iIbjrDh CF johedugfp 2025-10-19