Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rubric.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 23:49:49 UTC · ↺ Refresh
MX Hostnames
- rubric-com.mail.protection.outlook.com
MX Priorities
- rubric-com.mail.protection.outlook.com: 0
A / AAAA Records
- 75.2.60.5 ↩ acd89244c803f7181.awsglobalaccelerator.com
Mail Server IPs
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-748.awsdns-29.net awsdns-hostmaster.amazon.com 2021101101 7200 900 1209603 86400
Primary NS (mname)
ns-748.awsdns-29.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2021101101
Refresh
7200s
Retry
900s
Expire
1209603s
Minimum TTL
86400s
Nameservers (NS)
ns-748.awsdns-29.net
ns-1086.awsdns-07.org
ns-1830.awsdns-36.co.uk
ns-482.awsdns-60.com
SPF Record
✓ Strict (-all)
v=spf1 include:sendgrid.net include:emsd1.com include:spf.protection.outlook.com ip4:52.212.91.89 ip4:52.210.22.83 ip4:54.76.218.9 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; sp=reject; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms19726873
- apple-domain-verification=2r2Dyn4X3LVRmBzRHL9nmyZrj7Wh_KI9FRKuX2eCkCQ
- SPFv=spf1 include:sendgrid.net include:emsd1.com include:spf.protection.outlook.com ip4:52.212.91.89 ip4:52.210.22.83 ip4:54.76.218.9 -all
Full email verification for rubric.com
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