Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thirdera.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 23:03:02 UTC · ↺ Refresh
MX Hostnames
- thirdera-com.mail.protection.outlook.com
MX Priorities
- thirdera-com.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.3.10 (no PTR)
- 151.101.195.10 (no PTR)
- 151.101.131.10 (no PTR)
- 151.101.67.10 (no PTR)
Mail Server IPs
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.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
SOA Record
Raw SOA
ns1.cognizant.com dnsadmin.cognizant.com 2026012702 3600 600 1209600 3600
Primary NS (mname)
ns1.cognizant.com
Admin Email (rname)
dnsadmin@cognizant.com
Serial
2026012702
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns4.cognizant.com
ns1.cognizant.com
ns3.cognizant.com
ns5.cognizant.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.sendergen.com include:22769.spf01.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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- SPFv=spf1 include:spf.protection.outlook.com include:_spf.sendergen.com include:22769.spf01.hubspotemail.net -all
- MS=ms66961257
- adobe-idp-site-verification=bf3c3d69207b80f87584d8e5e4a13c9736cedf2674f0b11d81428c271c549058
- apple-domain-verification=bDSupqsMrf6cj2la
- pidaik6oqkq5bubcnd9rqivg8j
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