91.231.70.21 — Knurów, Silesia, 🇵🇱 Poland · AS198050 ALFA-SYSTEM-AS

PTR

smtp.alfa-system.net.pl

A record for

`mail.alfa-system.net.pl`
	A	2a0f:1700:1::421

Previously A record for

alfa-system.net.pl

IP numbers used in conjunction

100%	2a0f:1700:1::421

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Knurów, Silesia, 🇵🇱 Poland

^{🇵🇱 ALFA-SYSTEM-AS91.231.70.0/23 ALFA-SYSTEM}

91.231.70.21 Knurów, Silesia, 🇵🇱 Poland Courtesy of