Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
probau-s.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 01:57:58 UTC · ↺ Refresh
MX Hostnames
- probaus-de01e.mail.protection.outlook.com
MX Priorities
- probaus-de01e.mail.protection.outlook.com: 10
A / AAAA Records
- 85.215.253.90 ↩ mail.pro-bausoftware.de
Mail Server IPs
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1109.ui-dns.com hostmaster.1und1.de 2017061543 28800 7200 604800 300
Primary NS (mname)
ns1109.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017061543
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1109.ui-dns.org
ns1109.ui-dns.de
ns1109.ui-dns.biz
ns1109.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.mailersend.net ip4:92.39.28.125 ip4:217.160.224.105 include:spf.protection.outlook.com include:spf.crsend.com include:email.freshdesk.com include:spf.mailjet.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; aspf=s; adkim=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
dkim._domainkey
✓ Public key: 392 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- SPFv=spf1 include:_spf.mailersend.net ip4:92.39.28.125 ip4:217.160.224.105 include:spf.protection.outlook.com include:spf.crsend.com include:email.freshdesk.com include:spf.mailjet.com -all
- brevo-code:ea3ed030eeaf0b6eaa56ba39de7e55df
- MS=ms71525500
- google-site-verification=QnjsLC5ZzrUetTROPR9tFagVkXclM0JPGhX0aZ9aSBc
- teamviewer-sso-verification=645c4ab8a80e45029e689cccba433bc1
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