serbitecsa.com

Valid Email Server
Domain Lookup › serbitecsa.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
serbitecsa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 20:43:09 UTC · ↺ Refresh

MX Hostnames

  • serbitecsa-com.mail.protection.outlook.com

MX Priorities

  • serbitecsa-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 13.33.67.33 ↩ server-13-33-67-33.jfk50.r.cloudfront.net
  • 13.33.67.61 ↩ server-13-33-67-61.jfk50.r.cloudfront.net
  • 13.33.67.3
  • 13.33.67.31
  • 2600:9000:208d:a000:15:b7a4:e040:93a1
  • 2600:9000:208d:a800:15:b7a4:e040:93a1
  • 2600:9000:208d:6400:15:b7a4:e040:93a1
  • 2600:9000:208d:9400:15:b7a4:e040:93a1
  • 2600:9000:208d:8600:15:b7a4:e040:93a1
  • 2600:9000:208d:ea00:15:b7a4:e040:93a1
  • 2600:9000:208d:ae00:15:b7a4:e040:93a1
  • 2600:9000:208d:600:15:b7a4:e040:93a1

Mail Server IPs

  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.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 2398736617 10000 2400 604800 1800
Primary NS (mname)
evan.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398736617
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

✗ Missing

No 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

2 records
  • MS=ms25222669
  • SPFv=spf1 include:spf.protection.outlook.com -all
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