Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tu.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 23:53:14 UTC · ↺ Refresh
MX Hostnames
- tu-org.mail.protection.outlook.com
MX Priorities
- tu-org.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
SOA Record
Raw SOA
ns39.worldnic.com namehost.worldnic.com 125101619 10800 3600 604800 3600
Primary NS (mname)
ns39.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125101619
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns39.worldnic.com
ns40.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 a:login.tu.org a:gifts.tu.org ip4:34.196.9.253 ip4:52.3.86.1 ip4:54.161.1.40 ip4:208.158.238.251 ip4:208.158.238.252 ip4:69.84.129.224/27 ip4:209.210.130.132 include:us._netblocks.mimecast.com include:informz.net include:_spf.votervoice.net include:spf.commbrands.com include:spf.protection.outlook.com include:spf.constantcontact.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 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
6 records- SPFv=spf1 a:login.tu.org a:gifts.tu.org ip4:34.196.9.253 ip4:52.3.86.1 ip4:54.161.1.40 ip4:208.158.238.251 ip4:208.158.238.252 ip4:69.84.129.224/27 ip4:209.210.130.132 include:us._netblocks.mimecast.com include:informz.net include:_spf.votervoice.net include:spf.commbrands.com include:spf.protection.outlook.com include:spf.constantcontact.com -all
- google-site-verification=NKwY984mTBnewGqLrY1EAOPTFf2iAYqVbzxfsFT7mMk
- ZOOM_verify_B7ZukWm1SByaGJIWUnEP-A
- google-site-verification=xl8aruDw-Xt5PyF--rxzgz-L0RBGE1PMnAYxr6PS_N8
- google-site-verification=KiGB4OMXBGpPfIZt0PRdYIk5r2ALcSSDKmynIDXMBx4
- apple-domain-verification=4xca9WNiZDTtT2fihSOp1CZE5_5pFQgOe71qUSSgXv8
Full email verification for tu.org
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