Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ard-generalsekretariat.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 04:16:27 UTC · ↺ Refresh
MX Hostnames
- ardgeneralsekretariat-de0i.mail.protection.outlook.com
MX Priorities
- ardgeneralsekretariat-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 160.44.192.199 ↩ ecs-160-44-192-199.reverse.open-telekom-cloud.com
Mail Server IPs
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.vodafone-ip.de admin.rbb-online.de 2023060501 10800 3600 3600000 86400
Primary NS (mname)
ns1.vodafone-ip.de
Admin Email (rname)
admin@rbb-online.de
Serial
2023060501
Refresh
10800s
Retry
3600s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns1.vodafone-ip.de
ns2.vodafone-ip.de
auth1.dns.cogentco.com
auth2.dns.cogentco.com
SPF Record
✓ Strict (-all)
v=spf1 a:m-relayp02.rbb-online.de a:m-relayb02.rbb-online.de include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
3 records- MS=ms59530096
- KSikyCtOnzUbCppgoaY1G3YZuSW/dXXizpD2x3QsGrVlBIFGr7VeP8yJoV4nrG9G+GD6/mjMqIQQvRYtkgvnLw==
- SPFv=spf1 a:m-relayp02.rbb-online.de a:m-relayb02.rbb-online.de include:spf.protection.outlook.com -all
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