Domain Overview
DNS: ✓ 13h ago
Checker: ✓ 13h ago
colgas.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 06:51:53 UTC · ↺ Refresh
MX Hostnames
- colgas-com.mail.protection.outlook.com
MX Priorities
- colgas-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.18.39 (no PTR)
- 104.18.19.39 (no PTR)
- 2606:4700::6812:1327
- 2606:4700::6812:1227
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
jasper.ns.cloudflare.com dns.cloudflare.com 2404801279 10000 2400 604800 1800
Primary NS (mname)
jasper.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404801279
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jasper.ns.cloudflare.com
maxine.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:zcsend.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
4 records- google-site-verification=XYLqY9pPT9OVmLck-5QCULUpnVEZnddAVa60A621YOk
- SPFv=spf1 include:zcsend.net include:spf.protection.outlook.com -all
- MS=ms43506499
- google-gws-recovery-domain-verification=70318377
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