Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
diamond-electric.com.sg
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 18:40:39 UTC · ↺ Refresh
MX Hostnames
- diamondelectric-com-sg01i.mail.protection.outlook.com
MX Priorities
- diamondelectric-com-sg01i.mail.protection.outlook.com: 0
A / AAAA Records
- 20.22.31.128 (no PTR)
Mail Server IPs
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-07.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-07.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-07.azure-dns.info
ns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:113.11.251.136 include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._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
4 records- MS=ms13806893
- SPFv=spf1 +a +mx +ip4:113.11.251.136 include:spf.protection.outlook.com ~all
- _0hfobgh5kgklqlgh9b78g9il8mfejiu
- google-site-verification=1B10k42DeuTGf-PWqRe8xK3lmzlrAuFo6LCLwPLSI9g
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