Domain Overview
DNS: ✓ 19h ago
Checker: ✓ 19h ago
kolumbus.no
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 18:10:19 UTC · ↺ Refresh
MX Hostnames
- kolumbus-no.mail.protection.outlook.com
MX Priorities
- kolumbus-no.mail.protection.outlook.com: 1
A / AAAA Records
- 52.17.88.118 ↩ ec2-52-17-88-118.eu-west-1.compute.amazonaws.com
Mail Server IPs
- 52.101.177.2 ↩ mail-os5p279cu00202.inbound.protection.outlook.com
- 52.101.179.0 ↩ mail-svzp279cu00100.inbound.protection.outlook.com
- 52.101.177.1 ↩ mail-os6p279cu01301.inbound.protection.outlook.com
- 52.101.177.0 ↩ mail-olap279cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
lex.ns.cloudflare.com dns.cloudflare.com 2404318052 10000 2400 604800 1800
Primary NS (mname)
lex.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404318052
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lex.ns.cloudflare.com
mckinley.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a ip4:188.172.137.15 ip4:195.159.144.141 ip4:152.93.253.190 ip6:2a02:2c8:1:400:250:56ff:feb8:5296 ip6:2a02:2c8:1:400::3313 ip6:2a02:2c8:1:400::3311 ip4:23.251.238.30 ip4:23.251.238.31 ip4:23.251.238.32 ip4:23.251.238.33 include:spf1.kolumbus.no include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- DomainVerification=WWIL4MH8F43UNG0GX120ICTUIQSJ3J2J73MLRR8N8XPFQ6E5BSR7HFIYYO8T5Z7R
- atlassian-domain-verification=DgkFa2Cbz8k1a2O4Lwo2mBS4XPJfS7mzcMg7UuloA476FEmELp2ydpeFRxR3tXaA
- SPFv=spf1 a ip4:188.172.137.15 ip4:195.159.144.141 ip4:152.93.253.190 ip6:2a02:2c8:1:400:250:56ff:feb8:5296 ip6:2a02:2c8:1:400::3313 ip6:2a02:2c8:1:400::3311 ip4:23.251.238.30 ip4:23.251.238.31 ip4:23.251.238.32 ip4:23.251.238.33 include:spf1.kolumbus.no include:spf.protection.outlook.com -all
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