MXLIST.NET - spamfilter02.system4u.com

Search for IP or hostnames:

spamfilter02.system4u.com checked at 2025-10-25T16:15:44.749Z 220ms 25/25/25 100% R:12

`spamfilter02.system4u.com`

	A	81.31.37.87^{🇨🇿 MasterDC}
			PTR	`60.gate4u.system4u.cz`

	NS	`quentin.ns.cloudflare.com`
	NS	`thea.ns.cloudflare.com`
	MX	`system4u-com.mail.protection.outlook.com`
	A	37.9.175.165^{🇸🇰 Websupport}

spamfilter02.system4u.com points to a single IP address: 81.31.37.87.

Other host names, for instance 60gate4u.system4u.cz, share IP numbers with spamfilter02.system4u.com.

dbq