Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smart-systems-hub.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 03:11:25 UTC · ↺ Refresh
MX Hostnames
- smartsystemshub-de01c1c.mail.protection.outlook.com
MX Priorities
- smartsystemshub-de01c1c.mail.protection.outlook.com: 5
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1126.ui-dns.org hostmaster.1and1.com 2017031019 28800 7200 604800 300
Primary NS (mname)
ns1126.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2017031019
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1089.ui-dns.com
ns1126.ui-dns.org
ns1048.ui-dns.de
ns1057.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a include:_spf.perfora.net include:_spf.kundenserver.de include:spf.nl2go.com include:spf.sendinblue.com mx include:spf.protection.outlook.com include:spf.protection.outlook.de ~all
📊 DNS lookups: 9/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- Sendinblue-code:5fb0274a889ad10a0a59bb101b153b6e
- google-site-verification=HDu-6JxTcjDsDj4VS_GRBZLZN9BGjwlzZGKVDm0MWKw
- google-site-verification=OINL5Cjw4nVImOOotBACj8NbU3VsDoOn_752-45dUzg
- SPFv=spf1 mx a include:_spf.perfora.net include:_spf.kundenserver.de include:spf.nl2go.com include:spf.sendinblue.com mx include:spf.protection.outlook.com include:spf.protection.outlook.de ~all
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