Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hollyheights.net
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 18:25:46 UTC · ↺ Refresh
MX Hostnames
- hollyheights-net.mail.protection.outlook.com
MX Priorities
- hollyheights-net.mail.protection.outlook.com: 0
A / AAAA Records
- 70.39.233.189 ↩ hosting.servicecenter1.com
Mail Server IPs
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1673.awsdns-17.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1673.awsdns-17.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-922.awsdns-51.net
ns-1068.awsdns-05.org
ns-1673.awsdns-17.co.uk
ns-238.awsdns-29.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:mailon.spamtitan.com include:_spf-mailon-us-1.spamtitan.com include:spf.protection.outlook.com include:spf.encrypttitan.net ip4:38.97.76.85 -all
📊 DNS lookups: 5/10
✓ 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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx a:mailon.spamtitan.com include:_spf-mailon-us-1.spamtitan.com include:spf.protection.outlook.com include:spf.encrypttitan.net ip4:38.97.76.85 -all
- MS=ms24767728
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