Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
glasslock.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 21:27:26 UTC · ↺ Refresh
MX Hostnames
- glasslock-de.mail.protection.outlook.com
MX Priorities
- glasslock-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.203 ↩ 217-160-0-203.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::274 ↩ 2001-08d8-100f-f000-0000-0000-0000-0274.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1017.ui-dns.de hostmaster.1und1.de 2016090211 28800 7200 604800 300
Primary NS (mname)
ns1017.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2016090211
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1017.ui-dns.com
ns1017.ui-dns.de
ns1017.ui-dns.org
ns1017.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- brevo-code:e584c63f22de25f4465d2d531c30c826
- SPFv=spf1 include:_spf-eu.ionos.com include:spf.protection.outlook.com ~all
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