Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
itu.int
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 02:14:51 UTC · ↺ Refresh
MX Hostnames
- itu-int.mail.protection.outlook.com
MX Priorities
- itu-int.mail.protection.outlook.com: 28
A / AAAA Records
- 156.106.253.250 ↩ F5-IPv4v6.itu.ch
- 2a00:7580:60:a252::3250 ↩ F5-IPv4v6.itu.ch
Mail Server IPs
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns.itu.ch hostmaster.itu.ch 2026040101 1800 900 1209600 3600
Primary NS (mname)
ns.itu.ch
Admin Email (rname)
hostmaster@itu.ch
Serial
2026040101
Refresh
1800s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns7.itu.ch
ns5.itu.ch
ns2.itu.ch
ns.itu.ch
ns3.itu.ch
ns8.itu.ch
ns6.itu.ch
SPF Record
✓ Strict (-all)
v=spf1 ip4:156.106.192.20/30 ip4:156.106.192.38/31 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; sp=none; fo=0:1:d:s; adkim=s; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
s1._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- google-site-verification=KnjD3vfQw6QzV-Tdi1DYB-vruU1LRfcoZa3hpu_6Dmw
- google-site-verification=Mt2O1S2bdYkwzokESyNQlj-W_krcAAnJpKXW8YQBPZM
- google-site-verification=OAL7V9LOPx_KZ3pTK2B89gxf9-tpX4SuWsujyfFxo5M
- SPFv=spf1 ip4:156.106.192.20/30 ip4:156.106.192.38/31 include:spf.protection.outlook.com -all
- MS=ms10801744
- UtNf3/9YCnOlqyKq55I859zREUJ3vIEafS4HVQpD/NcAts7kNSCo6e72jl7348oBAZqveiJc9cv7Fl25auRSgg==
- adobe-idp-site-verification=45cc586968520745b7c4a80da26402a4e93b36523cb57fe997f15d0104ab55c8
- apple-domain-verification=8k1jFouBaGXq2Vu4
- atlassian-domain-verification=74JS2eOA8Lqcdxbs5ydH5jf1oZwmrm7egDaiC06Exhuraiecduu/TxL1P3dBc0i0
- cisco-ci-domain-verification=65b81f5e5cbb148bc6ecf3dbbe8a12c57a775321fb55e5b19be6595c0a1c06d0
- google-site-verification=H4hEnSrSL9A-LU_zr1GB86qJ9TNwO5QQ62yVPDGxtQU
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