gbtec.es

Valid Email Server
Domain Lookup › gbtec.es

Domain Overview

DNS: ✓ 3h ago Checker: ✓ 3h ago
gbtec.es
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 07:16:12 UTC · ↺ Refresh

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MX Hostnames

  • gbtec-es.mail.protection.outlook.com

MX Priorities

  • gbtec-es.mail.protection.outlook.com: 0

A / AAAA Records

  • 3.5.139.156 ↩ s3-r-w.eu-central-1.amazonaws.com
  • 3.5.136.225 (no PTR)
  • 16.12.32.0
  • 3.5.120.220
  • 3.5.122.43
  • 3.5.139.99
  • 52.219.169.44
  • 3.5.121.5

Mail Server IPs

  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.73.123 ↩ mail-am6pr02cu00203.inbound.protection.outlook.com
  • 52.101.73.126 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com
  • 52.101.185.21 ↩ mail-zrxpr05cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca48::10 ↩ mail-miypr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::c ↩ mail-matpr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::22 ↩ mail-am7pr02cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::28 ↩ mail-am6pr02cu00300.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1755.awsdns-27.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1755.awsdns-27.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1755.awsdns-27.co.uk
ns-740.awsdns-28.net
ns-1405.awsdns-47.org
ns-165.awsdns-20.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

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • google-site-verification=P0lowPZdkzv9ZytgRi-UUUtg_-HoRYjfD-b0jSbI0ng
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms54545507
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