CF1762328448432-tsm20251104152717

IPLIST.NET - mail.open-system.pl

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mail.open-system.pl checked at 2025-11-05T07:40:48.420Z 157ms 28/28/28 100% R:16

mail.open-system.pl

A136.243.254.121🇩🇪 Hetzner
PTRs602.calserver.eu

open-system.pl

NSns1.cal.pl
NSns2.cal.pl
MXmail.open-system.pl
A136.243.254.121🇩🇪 Hetzner

MX for

Starts with same word

Starts similarily

AI analysis

mail.open-system.pl handles mail for open-system.pl.

mail.open-system.pl points to a single IP address: 136.243.254.121.

Other host names such as mail.lesniakowka.pl, mail.s602.calserver.eu, f10.pl, fvp.pl and mail.ekspert-bankowy.pl share IPs with mail.open-system.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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