Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cme4u.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 17:36:48 UTC · ↺ Refresh
MX Hostnames
- cme4u-org.mail.protection.outlook.com
MX Priorities
- cme4u-org.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.53 ↩ 217-160-0-53.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1120.ui-dns.org hostmaster.1und1.de 2017080340 28800 7200 604800 300
Primary NS (mname)
ns1120.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017080340
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1120.ui-dns.biz
ns1120.ui-dns.org
ns1120.ui-dns.com
ns1120.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com include:sendgrid.net mx -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 3 found
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=t6He7lGPaoYAUz2hUJB6YxN86SQmJG2DxHF-_3Xw_Kk
- Sendinblue-code:3e32f26d67c4b8ad56bdd1041fc52eee
- SPFv=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com include:sendgrid.net mx -all
- brevo-code:3e32f26d67c4b8ad56bdd1041fc52eee
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