Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
k2-systems.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 18:56:22 UTC · ↺ Refresh
MX Hostnames
- k2systems-com0e.mail.protection.outlook.com
MX Priorities
- k2systems-com0e.mail.protection.outlook.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
dns.dns1.de hostmaster.partnergate.com 2026031101 28800 7200 604800 86400
Primary NS (mname)
dns.dns1.de
Admin Email (rname)
hostmaster@partnergate.com
Serial
2026031101
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns.dns3.de
dns.dns1.de
dns.dns4.de
dns.dns2.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.184.167.102 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.cmail.ondemand.com include:email.hivebrite.com include:144989340.spf05.hubspotemail.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- autodesk-domain-verification=-KilnN2mS6NXpoB-QvZV
- google-site-verification=jGebiRLDwRdp52713MO_oiAxuzml_Qpk7YaHxOEGx4k
- teamviewer-sso-verification=6645ea0a4e7344dfb404465a23c58f64
- google-site-verification=10gwRlJDSxDA1xd-1p2nQgjiYWt21yxklsO7yLRQck0
- SPFv=spf1 ip4:212.184.167.102 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:_spf.cmail.ondemand.com include:email.hivebrite.com include:144989340.spf05.hubspotemail.net -all
- atlassian-domain-verification=2djORmgVfo1VYbc1Jc0/DqwwXPug9lLuRsF3jPAD5GkseLUwp7vCuZgxWux1nqaN
- protonmail-verification=c389b25b0658aeaa56779f5c812804aa36d5943f
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