theoremdevelopments.com

Valid Email Server
Domain Lookup › theoremdevelopments.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
theoremdevelopments.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 02:27:30 UTC · ↺ Refresh

MX Hostnames

  • theoremdevelopments-com.mail.protection.outlook.com

MX Priorities

  • theoremdevelopments-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 75.2.60.5 ↩ acd89244c803f7181.awsglobalaccelerator.com

Mail Server IPs

  • 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA angelina.ns.cloudflare.com dns.cloudflare.com 2399695773 10000 2400 604800 1800
Primary NS (mname)
angelina.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399695773
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

angelina.ns.cloudflare.com
gerardo.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.createsend.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

3 records
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.createsend.com -all
  • MS=ms30624558
  • google-site-verification=d49wfwvbupqR8RIZD-dqpJk7QJW8V3FstbicFRE4zQE
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