Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rappel.ltd.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 15:53:40 UTC · ↺ Refresh
MX Hostnames
- rappel-ltd-uk.mail.protection.outlook.com
MX Priorities
- rappel-ltd-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.15.150 (no PTR)
- 104.26.14.150 (no PTR)
- 172.67.74.44
- 2606:4700:20::ac43:4a2c
- 2606:4700:20::681a:e96
- 2606:4700:20::681a:f96
Mail Server IPs
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
david.ns.cloudflare.com dns.cloudflare.com 2398829512 10000 2400 604800 1800
Primary NS (mname)
david.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398829512
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zara.ns.cloudflare.com
david.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf-eu.emailsignatures365.com include:spf.emailsignatures365.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf-eu.emailsignatures365.com include:spf.emailsignatures365.com ~all
- MS=ms80431382
- linkedin-site-verification=7dba8e5d-4846-47f9-9ec4-7448cf7b129d
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