Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
polarstern-energie.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 01:11:22 UTC · ↺ Refresh
MX Hostnames
- polarsternenergie-de02e.mail.protection.outlook.com
MX Priorities
- polarsternenergie-de02e.mail.protection.outlook.com: 1
A / AAAA Records
- 20.82.12.44 (no PTR)
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-35.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-35.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2-35.azure-dns.net
ns3-35.azure-dns.org
ns4-35.azure-dns.info
ns1-35.azure-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:80.237.138.0/24 ip4:92.51.170.64/27 ip6:2a01:488:42::/48 include:spf.protection.outlook.com include:spf.crsend.com include:schalk-it.de include:send.zcsend.eu include:spf-eu.emailsignatures365.com include:spf.zoho.eu include:eu.transmail.net ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
15 records- facebook-domain-verification=hy6hsi4wzgec341w9wvpl7v3mx3qhv
- google-site-verification=e-ndW1hOTEkGq77JTh1HV4sMYyVjF8MPLktOwPvsG8o
- apple-domain-verification=ugFSSCczhqTFS3TnaCZueG7w-BdSdusE7x1IvKkO3v0
- zoho-verification=zb50936042.zmverify.zoho.eu
- SPFv=spf1 ip4:80.237.138.0/24 ip4:92.51.170.64/27 ip6:2a01:488:42::/48 include:spf.protection.outlook.com include:spf.crsend.com include:schalk-it.de include:send.zcsend.eu include:spf-eu.emailsignatures365.com include:spf.zoho.eu include:eu.transmail.net ~all
- google-site-verification=7fn5Say4_NNa2k-J7s9bZpesZ8-rxpZzMB7Bd-8Gbs0
- google-site-verification=9crRQ43LGjx8sccQkwk3dZpeEA4K1fegBNhgj4qHlhw
- 2698bpf118c30nl9lw9fkprj9zzcc9sr
- dp2rekgua9cg6s4u6889lhm7f7
- twilio-domain-verification=5bff1704d3b6a694f998ab1d6d7477f3
- google-site-verification=CYuX5h5CYDJ9ikzp1whFo4lFlO9ZSKZMPWa32wEmck0
- 1boeauob44le8on1k3b6v20f3u
- google-site-verification=xIbLTHUkwUIspvfT7IHgetKs-KxZbPMty-b4Wdv2L6U
- apple-domain-verification=vimyVodaKmbIDYC4
- MS=ms21562121
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