Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stclairfs.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 02:12:10 UTC · ↺ Refresh
MX Hostnames
- stclairfs-com.mail.protection.outlook.com
MX Priorities
- stclairfs-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.18.9.40 (no PTR)
- 104.18.8.40 (no PTR)
- 2606:4700::6812:928
- 2606:4700::6812:828
Mail Server IPs
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
boyd.ns.cloudflare.com dns.cloudflare.com 2399365988 10000 2400 604800 1800
Primary NS (mname)
boyd.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399365988
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
cloe.ns.cloudflare.com
boyd.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:135.84.130.60/31 ip4:135.84.131.252 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
6 records- SPFv=spf1 mx ip4:135.84.130.60/31 ip4:135.84.131.252 include:spf.protection.outlook.com -all
- ydn0fd1w4httv9t94wm10jw8qcjk5lll
- MS=ms69427991
- hlgttzb7pyg7fvvx3j4zjk9sl9s3pdt7
- kdhv7d5wfz2x837h9wxh4mzsk98r63dt
- knowbe4-site-verification=5ebd0bf81cc7fc27f3f80ebe49211a69
Full email verification for stclairfs.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits