Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
colliervilleschools.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 07:40:20 UTC · ↺ Refresh
MX Hostnames
- colliervilleschools-org.mail.protection.outlook.com
MX Priorities
- colliervilleschools-org.mail.protection.outlook.com: 10
A / AAAA Records
- 54.221.139.169 ↩ ec2-54-221-139-169.compute-1.amazonaws.com
- 18.233.124.95 ↩ ec2-18-233-124-95.compute-1.amazonaws.com
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
dns101.register.com namehost.worldnic.com 125121110 10800 3600 604800 3600
Primary NS (mname)
dns101.register.com
Admin Email (rname)
namehost@worldnic.com
Serial
125121110
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns102.register.com
dns101.register.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.colliervilleschools_org._d.easydmarc.pro -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;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
✓ 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
11 records- 8bq1ipqv07ailnjjo9f53sqndg
- et3mt236dc5prk4qiqeuuv265t
- gijaf2jrb7cjthe8raep8ku2l6
- apple-domain-verification=1aMI-GTsLuLhsUs5SOkBryTuZrxs-ss4rKKAgYKwHpY
- 51jj9bqfufmd3kfgbq2maq0rd8
- MS=ms78668451
- google-site-verification=iDTJ31VHDnVsvHs1Vuu6eDjaXfOik72T8sRbK2laKDU
- SPFv=spf1 include:_spf.colliervilleschools_org._d.easydmarc.pro -all
- apple-domain-verification=SBZ5dx7AmFwzwdJH
- nmbp7ur6aouvith470p9vmut0s
- 57faqs6uimos9hu57k488l6695
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