Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rmchin.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 10:32:32 UTC · ↺ Refresh
MX Hostnames
- rmchin-com.mail.protection.outlook.com
MX Priorities
- rmchin-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
todd.ns.cloudflare.com dns.cloudflare.com 2399444248 10000 2400 604800 1800
Primary NS (mname)
todd.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399444248
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ulla.ns.cloudflare.com
todd.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:167.89.11.197 ip4:12.222.20.218 ip4:24.173.67.222 include:spf.protection.outlook.com include:sharepoint.com include:servers.mcsv.net include:spf-us.emailsignatures365.com include:spf.hosting.americaneagle.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
5 records- GnGkTRf30UjK7+b/FP70+ae2vjJ074jNWv57pOr/WKlCSTIpYh3DAtnWW+F2Q2z+CRfLDelQe0gRMpF0q8QM7g==
- MS=ms67808800
- apple-domain-verification=x7cjriJbPORwHUnI
- asv=f7f1d937eb405daec8441ebbe79b1566
- SPFv=spf1 ip4:167.89.11.197 ip4:12.222.20.218 ip4:24.173.67.222 include:spf.protection.outlook.com include:sharepoint.com include:servers.mcsv.net include:spf-us.emailsignatures365.com include:spf.hosting.americaneagle.com ~all
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