Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
jasperrubber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 03:17:49 UTC · ↺ Refresh
MX Hostnames
- jasperrubber-com.mail.eo.outlook.com
MX Priorities
- jasperrubber-com.mail.eo.outlook.com: 0
A / AAAA Records
- 209.87.158.105 ↩ cloudhost-5951364.us-midwest-1.nxcli.net
Mail Server IPs
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.cscdns.net hostmaster.cscdns.net 2026020603 28800 7200 604800 86400
Primary NS (mname)
dns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2026020603
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns2.cscdns.net
dns1.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:208.110.191.82 ip4:208.110.191.84 include:spf.us1.defend.egress.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=0;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- duo_sso_verification=gjNbNqSSJ60EuL14va8T5O47pvMZHD518HJ9AQD1xbCiJ6ZOXU63GpjRypEoOSHo
- l23eRHVmXQEzkAgp5WN52HcK2f47HjV+MihEzl0tDzhR33JgRcfWCO6EhnSjVwzVCY3ZiihgkVUykefdO7tecg==
- SPFv=spf1 mx ip4:208.110.191.82 ip4:208.110.191.84 include:spf.us1.defend.egress.com include:spf.protection.outlook.com -all
- MS=BBAD61F00D3C8B0E40BF330810765A4140BD98FD
- knowbe4-site-verification=6d229483edc65ecdd845e35e5db84ca7
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