Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gmcsusa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 01:04:02 UTC · ↺ Refresh
MX Hostnames
- gmcsusa-com.mail.protection.outlook.com
MX Priorities
- gmcsusa-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.81.202 (no PTR)
- 172.67.164.7 (no PTR)
- 2606:4700:3035::ac43:a407
- 2606:4700:3034::6815:51ca
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
SOA Record
Raw SOA
jeremy.ns.cloudflare.com dns.cloudflare.com 2397064245 10000 2400 604800 1800
Primary NS (mname)
jeremy.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397064245
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jeremy.ns.cloudflare.com
rachel.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com ip4:165.22.189.131 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- rX0/YvarPAnZJu18TTQzUjdMNmUWMnIeiRX2WEDwdxb5Y5yE2vj2ef1OQtPyv/ftthPQBN1xLEH6xjCtXbOrPQ==
- SPFv=spf1 include:spf.protection.outlook.com include:spf.constantcontact.com ip4:165.22.189.131 -all
- MS=ms20671997
- google-site-verification=2f4YJZP6ggJR6mhS5jdj0t1FtytsKiVd2TE1v8_EZYM
- google-site-verification=zeewOa3dyDhT0b5P7SGipaNuxY5AszqsOQIquezSZAk
Full email verification for gmcsusa.com
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