Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grp-ak.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 15:34:23 UTC · ↺ Refresh
MX Hostnames
- grpak-de0i.mail.protection.outlook.com
MX Priorities
- grpak-de0i.mail.protection.outlook.com: 0
A / AAAA Records
- 78.46.68.187 ↩ srv01.grp-ak.de
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.norplex-communications.com technik.norplex.net 2021031801 14400 3600 2419200 600
Primary NS (mname)
ns.norplex-communications.com
Admin Email (rname)
technik@norplex.net
Serial
2021031801
Refresh
14400s
Retry
3600s
Expire
2419200s
Minimum TTL
600s
Nameservers (NS)
ns.norplex-communications.net
ns.norplex-communications.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:78.46.68.187 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 ip4:78.46.68.187 include:spf.protection.outlook.com -all
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