Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koeln-freiwillig.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 10:21:55 UTC · ↺ Refresh
MX Hostnames
- koelnfreiwillig-de01c.mail.protection.outlook.com
MX Priorities
- koelnfreiwillig-de01c.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.54 ↩ 217-160-0-54.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1121.ui-dns.com hostmaster.1und1.com 2017060171 28800 7200 604800 600
Primary NS (mname)
ns1121.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060171
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1121.ui-dns.com
ns1061.ui-dns.biz
ns1067.ui-dns.org
ns1057.ui-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.perfora.net include:_spf.pretix.eu include:_spf-eu.ionos.com include:spf.sendinblue.com include:_spf.kundenserver.de include:spf.protection.outlook.com include:spf.brevo.com mx ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
2 records- brevo-code:e1df6b95ffe52dfa166a273023fc14cb
- SPFv=spf1 include:_spf.perfora.net include:_spf.pretix.eu include:_spf-eu.ionos.com include:spf.sendinblue.com include:_spf.kundenserver.de include:spf.protection.outlook.com include:spf.brevo.com mx ~all
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