Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
linear.fi
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 03:49:31 UTC · ↺ Refresh
MX Hostnames
- linear-fi.mail.protection.outlook.com
MX Priorities
- linear-fi.mail.protection.outlook.com: 0
A / AAAA Records
- 199.60.103.132 (no PTR)
- 199.60.103.32 (no PTR)
Mail Server IPs
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
anirban.ns.cloudflare.com dns.cloudflare.com 2398699043 10000 2400 604800 1800
Primary NS (mname)
anirban.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398699043
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mary.ns.cloudflare.com
anirban.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:149.72.238.107 include:sendgrid.net include:6234031.spf05.hubspotemail.net include:mail.zendesk.com -all
📊 DNS lookups: 4/10
✓ 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
6 records- 1password-site-verification=VEQLFRP3YZCERL3QEGB4PYRL5Q
- google-site-verification=AtFM79j-0BaAX10Lo3GZY0RKkSIEMFcoLOn8GqoGrIQ
- google-site-verification=YGqc1LTmXbcWlvoqqtb5y7qxz5lDoVfnYeYiboWCKbY
- google-site-verification=vdjE69sUdr5Mu_47OYRflOm4q5E6nGwkVO9k00uNpvM
- google-site-verification=wrXtgQKPMrEVH6Qpy5xCqb77Za2JT8zPGCIH6JgkVDE
- SPFv=spf1 include:spf.protection.outlook.com ip4:149.72.238.107 include:sendgrid.net include:6234031.spf05.hubspotemail.net include:mail.zendesk.com -all
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