Domain Overview
DNS: ✓ just now
Checker: ✓ just now
cmayor.es
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-23 10:36:11 UTC · ↺ Refresh
MX Hostnames
- cmayor-es.mail.protection.outlook.com
MX Priorities
- cmayor-es.mail.protection.outlook.com: 0
A / AAAA Records
- 185.14.58.105 ↩ vm958.dnspropio.com
Mail Server IPs
- 52.101.91.153 ↩ mail-matpr04cu00101.inbound.protection.outlook.com
- 52.101.185.114 ↩ mail-zrxpr04cu00102.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.73.155 ↩ mail-am7pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::a ↩ mail-am7pr02cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1087.ui-dns.com hostmaster.1und1.com 2017060144 28800 7200 604800 600
Primary NS (mname)
ns1087.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060144
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1087.ui-dns.com
ns1101.ui-dns.org
ns1044.ui-dns.de
ns1101.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-eu.mailssig.com ip4:212.227.126.135 ip4:82.223.13.253 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
5 records- SPFv=spf1 include:spf.protection.outlook.com include:spf-eu.mailssig.com ip4:212.227.126.135 ip4:82.223.13.253 -all
- MS=ms73435923
- 6xrhxwk9w5pdyk7pvjmhyvyf1pclb6n0
- google-site-verification=dRkY1oIyCZA0G9ZSZ-NveoUHVc2ZgYFeFf2Ha1BznCs
- MS=ms61045024
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