`mailbb.t-systems.com`

DNSSEC	⚠️ Not signed
MX	`mailin13.telekom.de` ⭐
		A	194.25.225.137^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`mailin13.telekom.de`
MX	`mailin33.telekom.de` ⭐
		A	194.25.225.197^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`mailin33.telekom.de`
MX	`mailin43.telekom.de` ⭐
		A	194.25.225.201^{🇩🇪 DTAG194.25.0.0/16 Deutsche Telekom AG, Internet service provider}
			PTR	`mailin43.telekom.de`

`t-systems.com`

	DNSSEC	⚠️ Not signed
	A	80.158.66.24^{🇩🇪 SCZN-AS80.158.64.0/22 belongs to 80.158.64.0/21}
	NS	`dns1.telekom.de` ⭐
	NS	`dns2.telekom.de`
	NS	`ns1.telekom.net`
	NS	`pns.dtag.de`
	MX	`mailin.ng.telekom.net` ⭐
	MX	`mailin22.telekom.de`⁽³⁰⁰⁾
	MX	`mailin42.telekom.de`⁽³⁰⁰⁾
	TXT	`google-site-verification=-o2GHDwcZBAZ2Kxwjh8RH-DvlwH0ZOZysiNSP4HAPQI`
	TXT	`v=spf1 ip4:193.192.231.129 ip4:193.192.231.130 ip4:205.201.128.0 ip4:198.2.12...`
	TXT	`atlassian-domain-verification=RYDBmArxP6DhrshwBcIZoo3ZF26BwxWI06Enb8LaC7YfF2d...`
	TXT	`easydmarc-verification:00d9ae26-b3c0-4d6d-abab-e7988224ea88`
	TXT	`figma-domain-verification=160013d7cef1653e8d58a5908848cf939b066e8e3f0a88e17c5...`
	TXT	`ZOOM_verify_CNemhMwYuu3HORMGs2mOxB`
	TXT	`Dynatrace-site-verification=70b98375-abd0-4fae-a040-4af2864afd9f__fnkttm0cde7...`
	TXT	`infoblox-domain-mastery=43a2ee62a400dc461f04184e61709fa73c541cc4544f57bb9d5aa...`
	TXT	`adobe-idp-site-verification=22f64faf827865075c1f3f1d814848b67f1e2ebe012796f5b...`
	TXT	`docusign=5d032b91-4142-4f08-9247-87ffb01fbb2d`
	TXT	`docusign=d5b1e542-65d2-4bee-83d5-060631cdd5c5`
	TXT	`MS=ms45872334`
	TXT	`UNDbgYkLGb5IJkojeOxskc+4M7fEtSJ61NOMPzVxzXrzwTfu+jSMWPQ2S8hlcWDwHv6tlTU0kuElC...`
	TXT	`_telesec-domain-validation=273890_2019-09-06_NVPuAKSv92g5icVfZ1AVx9VRmmiLTHVH...`
	TXT	`webexdomainverification.IPJP=7f99a256-5c5f-467a-8bbd-e4ebc5e6fc91`
	TXT	`webexdomainverification.BSJE=4de49a7a-bbee-4d28-9d4e-df6ec267f1f0`
	TXT	`amazonses:tqgFbDojTeDWZRynV3tPlXAOer/ym8VYFSygcTrw6x4=`
	TXT	`amazonses:WT0UTxpzNWvD5h9koLnRkGthAhkppJtoEiek9bXh26Q=`
	TXT	`google-site-verification=pPJpg7lXFPgyWZGkorijg0Gf2I9Zn_hIOQjhzJpiQH8`
	TXT	`2lcBNenxzZbeLri77hiDIHME2PcswdukTLTgLnE5kYXvkswSnXJzfpQ3HXv61KYIj7CwmKVnHSD82...`
	TXT	`docusign=d5da1847-9e9b-4933-826e-ea895e4b4675`
	TXT	`mongodb-site-verification=PfkPONidd16m2Q7u7JKabs3mKttR0Vy6`
	TXT	`miro-verification=089da153dee3b2bdebb4e4940c914abf39a26035`
	SOA	`dns1.telekom.de`dnsadmin@t-systems.com 2019-03-24 #5

WOT: SAFE (61/100)
rank #23565 globally
rank #11666 in the tld
WOT: SAFE (67/100)
📈 Tranco rank: #14,737

Same first word

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mailbb.de

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DNS History

9 records (3 active, 6 former)

●MXmailin13.telekom.de2017-07-05 → 2026-04-03 · 3 obs

○ 2017-05-31 22:32:50
● 2017-07-05 22:03:26
● 2026-04-03 23:03:10

○MXmailin23.telekom.de2017-07-05 → 2020-07-20 · 5 obs

○ 2017-05-31 22:32:50
● 2017-07-05 22:03:26
● 2020-07-20 11:22:56
○ 2021-02-26 23:05:58
○ 2026-04-03 23:03:10

●MXmailin33.telekom.de2018-06-11 → 2026-04-03 · 3 obs

○ 2017-10-26 13:13:40
● 2018-06-11 02:35:42
● 2026-04-03 23:03:10

●MXmailin43.telekom.de2018-06-11 → 2026-04-03 · 3 obs

○ 2017-10-26 13:13:40
● 2018-06-11 02:35:42
● 2026-04-03 23:03:10

○MXtcmail13.telekom.de2015-08-26 → 2017-10-26 · 4 obs

● 2015-08-26 14:50:50
● 2017-10-26 13:13:40
○ 2018-06-11 02:35:42
○ 2026-04-03 23:03:10

○MXtcmail23.telekom.de2015-08-26 → 2017-10-26 · 4 obs

● 2015-08-26 14:50:50
● 2017-10-26 13:13:40
○ 2018-06-11 02:35:42
○ 2026-04-03 23:03:10

○MXtcmail33.telekom.de2015-08-26 → 2017-01-28 · 4 obs

● 2015-08-26 14:50:50
● 2017-01-28 18:16:46
○ 2017-03-20 12:27:42
○ 2026-04-03 23:03:10

○MXtcmail43.telekom.de2015-08-26 → 2017-05-31 · 4 obs

● 2015-08-26 14:50:50
● 2017-05-31 22:32:50
○ 2017-07-05 22:03:26
○ 2026-04-03 23:03:10

○MXtcmail93.telekom.de2015-08-26 → 2017-05-31 · 4 obs

● 2015-08-26 14:50:50
● 2017-05-31 22:32:50
○ 2017-07-05 22:03:26
○ 2026-04-03 23:03:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
t-systems.com	pns.dtag.de, dns1.telekom.de, dns2.telekom.de, ns1.telekom.net	-

✅ Authoritative Response

Server:212.185.24.65

NS records: pns.dtag.de, dns1.telekom.de, dns2.telekom.de, ns1.telekom.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for t-systems.com (unsigned zone)

⏱️ Timing

Total: 678ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	3	`mailin13.telekom.de (pri: 100), mailin43.telekom.de (pri: 100)...`

Analysis

Mail Servers

mailbb.t-systems.com is handled by three mail servers: mailin13.telekom.de, mailin33.telekom.de and mailin43.telekom.de.

mailbb.t-systems.com shares some mail servers with other domains, at least partially, such as box.t-systems.com, mail.esa.t-systems.com, w1a10091.t-data.telekom.de, *.com.htmlmymms.mms-dresden.telekom.de and dreisechsnull.telekom.de.

These mail servers are often used together with mailin23.telekom.de and mailout33.telekom.de.

Host names with one IP number:

Host mailin13.telekom.de points to 194.25.225.137.

Host mailin33.telekom.de points to 194.25.225.197.

Host mailin43.telekom.de points to 194.25.225.201.

mailbb.t-systems.com - robtex.com