Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
is4it.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-07 14:19:50 UTC · ↺ Refresh
MX Hostnames
- is4it-de.mail.protection.outlook.com
MX Priorities
- is4it-de.mail.protection.outlook.com: 0
A / AAAA Records
- 136.243.187.20 ↩ mo.sturmlan.net
Mail Server IPs
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.nic53.net hostmaster.is4it.de 1774211953 10800 3600 604800 900
Primary NS (mname)
ns1.nic53.net
Admin Email (rname)
hostmaster@is4it.de
Serial
1774211953
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
ns2.nic53.de
ns1.nic53.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:25526632.spf07.hubspotemail.net ip4:195.30.228.72 ip4:176.98.160.173 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0:1:d:s; pct=100; adkim=r; aspf=r; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
5 records- wiz-domain-verification=084961cf6a9943467022b6e4e254206d89ccca15ebf3b26fbcda38cfa76fdb97
- google-site-verification=K5zqZET5Jpi4fAg9TYvdk8IFXtEPdPElVI7EqHSyvso
- hpe-greenlake-domain-verification=4c486d5977783747566d656e436b3269637369465431735a43446478777a7678
- _u1k09zhzpv7ksl63eo5r05vgqk5mm7w
- SPFv=spf1 include:spf.protection.outlook.com include:25526632.spf07.hubspotemail.net ip4:195.30.228.72 ip4:176.98.160.173 -all
Full email verification for is4it.de
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