Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sierra-cedar.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:55:47 UTC · ↺ Refresh
MX Hostnames
- sierracedar-com01e.mail.protection.outlook.com
MX Priorities
- sierracedar-com01e.mail.protection.outlook.com: 0
A / AAAA Records
- 57.151.22.117 (no PTR)
Mail Server IPs
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-08.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-08.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns4-08.azure-dns.info
ns1-08.azure-dns.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:psm.knowbe4.com include:spf.constantcontact.com ip4:12.63.233.242 ip4:147.154.97.253 ip4:132.226.58.160 ip4:129.80.56.29 ip4:170.55.84.122 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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
9 records- atlassian-sending-domain-verification=88f5f117-ffd7-4361-99b9-cb237b99ef67
- google-site-verification=zcfr0JTt0I7lzATPXLnEm94qU_m_V8p-9TtB4fVDHC0
- cassidy-verification=63c9dc4180e64c98b5646eb3b48c7a09
- anthropic-domain-verification-ez8v5t=1tXLh6xsLu9mCIkyXlokwdLRJ
- SPFv=spf1 mx include:spf.protection.outlook.com include:psm.knowbe4.com include:spf.constantcontact.com ip4:12.63.233.242 ip4:147.154.97.253 ip4:132.226.58.160 ip4:129.80.56.29 ip4:170.55.84.122 -all
- 5b5Chc+Ytf927K7FlBsfD3JGZIYkT0m8pkgOojvMnOdegD9nCHNoSxtgqeSD3Qp9JWFaTo+oND02uzg1EcgXCg==
- ZOOM_verify_B197Zl9gT7u-1pbdVjtn9g
- _gitlab-pages-verification-code.sierra-cedar.com TXT gitlab-pages-verification-code=fad6de73d0e60693c1cd0e24d28f6ace
- atlassian-domain-verification=wxjhEKY2bzLE0Hf/J0sDvEOMWfQ5mP3DrlWNmuOImi8qLlo5Jjh7po7PU42PQZ2M
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