Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
coortho.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 04:56:24 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-2.mimecast.com
- usb-smtp-inbound-1.mimecast.com
MX Priorities
No priority data.
A / AAAA Records
- 141.193.213.20
- 141.193.213.21
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
ns19.domaincontrol.com
ns20.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0:1:d:s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=zTSoSPqPheB2vTFcDPRTcQ0oNKqC-eAtkN8u5Zzes5Y
- SPFv=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com -all
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