Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
serbitec.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 00:20:45 UTC · ↺ Refresh
MX Hostnames
- serbitec-com.mail.protection.outlook.com
MX Priorities
- serbitec-com.mail.protection.outlook.com: 0
A / AAAA Records
- 13.33.67.31 ↩ server-13-33-67-31.jfk50.r.cloudfront.net
- 13.33.67.61 ↩ server-13-33-67-61.jfk50.r.cloudfront.net
- 13.33.67.3
- 13.33.67.33
- 2600:9000:208d:3200:15:b7a4:e040:93a1
- 2600:9000:208d:ae00:15:b7a4:e040:93a1
- 2600:9000:208d:ca00:15:b7a4:e040:93a1
- 2600:9000:208d:5600:15:b7a4:e040:93a1
- 2600:9000:208d:1400:15:b7a4:e040:93a1
- 2600:9000:208d:4200:15:b7a4:e040:93a1
- 2600:9000:208d:1c00:15:b7a4:e040:93a1
- 2600:9000:208d:5c00:15:b7a4:e040:93a1
Mail Server IPs
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
evan.ns.cloudflare.com dns.cloudflare.com 2398886449 10000 2400 604800 1800
Primary NS (mname)
evan.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398886449
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
evan.ns.cloudflare.com
nadia.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 237 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- gvqq430tajj1i9ih1m71rkissn
- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=AJ8uD1IMFh-rAf7R2IMrlGEPY1pjqDvyYVM5pzGcxN4
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