MXLIST.NET - opt-systems.com

Search for IP or hostnames:

opt-systems.com checked at 2025-11-16T16:36:12.613Z 261ms 95/95/95 100% R:18 allDone:true timedOut:false

`opt-systems.com`

NS	`dns1.siel.si`
		A	2a02:28b0:53::53 ^{🇸🇮 SIEL}
			PTR	`dns1.siel.si`
		A	46.19.12.12^{🇸🇮 SIEL}
			PTR	`dns1.siel.si`
NS	`dns2.siel.si`
		A	46.19.13.13^{🇸🇮 SIEL}
			PTR	`dns2.siel.si`
NS	`dns3.siel.si`
		A	217.61.252.53^{🇸🇮 SIEL}
			PTR	`dns3.siel.si`
MX	`optsystems-com0i.mail.protection.outlook.com`
		A	2a01:111:f403:ca04::7 ^{🇮🇪 Microsoft}
			PTR	`mail-db4pr02cu00307.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::a ^{🇳🇱 Microsoft}
			PTR	`mail-as8pr05cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d ^{🇳🇱 Microsoft}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::e ^{🇳🇱 Microsoft}
			PTR	`mail-am7pr05cu00206.inbound.protection.outlook.com`
		A	52.101.73.22^{🇳🇱 Microsoft}
			PTR	`mail-am7pr05cu00106.inbound.protection.outlook.com`
		A	52.101.73.24^{🇳🇱 Microsoft}
			PTR	`mail-as8pr05cu00300.inbound.protection.outlook.com`
		A	52.101.73.26^{🇳🇱 Microsoft}
			PTR	`mail-as9pr05cu01302.inbound.protection.outlook.com`
		A	52.101.73.30^{🇳🇱 Microsoft}
			PTR	`mail-am7pr05cu00306.inbound.protection.outlook.com`
A	185.29.16.100^{🇸🇮 Zabec.net}
		PTR	`natasa.zabec.net`

opt-systems.com

opt-systems.com

pto-systems.com

top-systems.jp

top-systems.nl

top-systems.eu

opt-systems.com points to a single IP number: 185.29.16.100.

Other host names, for instance mail.interal.si, www.regina.si, pond.si, sindirela.si and prodoor.si share IP numbers with opt-systems.com.

The delegation for opt-systems.com is handled by three name servers: dns1.siel.si, dns2.siel.si and dns3.siel.si.

opt-systems.com at least partially shares name servers with other domains, for instance dijaski.net, tatrenutek.si, gmajnica.com, ostervid.si and aquaviva.si.

Host names with two IP numbers:

dns1.siel.si points to 2a02:28b0:53::53 and 46.19.12.12.

Host names with one IP number:

opt-systems.com is handled by a single mail server, optsystems-com0i.mail.protection.outlook.com.

optsystems-com0i.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:ca04::7, 2a01:111:f403:ca09::a, 2a01:111:f403:ca09::d, 2a01:111:f403:ca09::e, 52.101.73.22, 52.101.73.24, 52.101.73.26 and 52.101.73.30.

dbq