Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
upnfiber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 20:22:54 UTC · ↺ Refresh
MX Hostnames
- upnfiber-com.mail.protection.outlook.com
MX Priorities
- upnfiber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.upnfiber.com support.upnfiber.com 2016100817 10800 3600 2419200 3600
Primary NS (mname)
ns3.upnfiber.com
Admin Email (rname)
support@upnfiber.com
Serial
2016100817
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns2.upnfiber.com
ns3.upnfiber.com
ns1.upnfiber.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:173.244.129.242 ip4:18.210.210.86 ip4:52.5.207.108 ip4:208.82.108.114 ip4:208.82.104.18 ip4:44.210.170.129 ip4:162.252.248.0/22 include:8219733.spf05.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ 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- have-i-been-pwned-verification=dweb_uu0qgylzkklrwmeafnb0xtjs
- MS=ms14933837
- _yi8casz85c1pxqhsjiedfexo8wqac8g
- SPFv=spf1 include:spf.protection.outlook.com include:mailgun.org ip4:173.244.129.242 ip4:18.210.210.86 ip4:52.5.207.108 ip4:208.82.108.114 ip4:208.82.104.18 ip4:44.210.170.129 ip4:162.252.248.0/22 include:8219733.spf05.hubspotemail.net -all
- 73ky5hn29p9pdfrp820ymtmkmpxhs6b7
- google-site-verification=OyS3TeU68ofV4UkFDTRUgicb7HrPuSD50kdec_Rroiw
- daZAP3TQwgJ8BzoCGWQmZzF69yNu51MiLfpxXCoXx2EO0sqzftnBh3ToyB3L1xYyN3pchWBA6QDfLCzKhLC3Uw==
- knowbe4-site-verification=5035483fb0f6ca7de77a941d302aa4fc
- apple-domain-verification=AoPtiBNRgT0hJhfW
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