collegiate-ac.com

Valid Email Server
Domain Lookup › collegiate-ac.com

Domain Overview

DNS: ✓ 4h ago Checker: ✓ 4h ago
collegiate-ac.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 04:08:04 UTC · ↺ Refresh

MX Hostnames

  • collegiateac-com02e.mail.protection.outlook.com

MX Priorities

  • collegiateac-com02e.mail.protection.outlook.com: 0

A / AAAA Records

  • 52.212.226.116 ↩ ec2-52-212-226-116.eu-west-1.compute.amazonaws.com

Mail Server IPs

  • 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
  • 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
  • 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
  • 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1877.awsdns-42.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1877.awsdns-42.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-320.awsdns-40.com
ns-513.awsdns-00.net
ns-1121.awsdns-12.org
ns-1877.awsdns-42.co.uk

SPF Record

✓ Strict (-all)
v=spf1 ip4:203.55.21.41 ip4:46.175.48.150 ip4:10.200.10.162 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

1 record
  • SPFv=spf1 ip4:203.55.21.41 ip4:46.175.48.150 ip4:10.200.10.162 include:spf.protection.outlook.com -all
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