Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spongo.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 23:47:03 UTC · ↺ Refresh
MX Hostnames
- spongo-de.mail.protection.outlook.com
MX Priorities
- spongo-de.mail.protection.outlook.com: 0
A / AAAA Records
- 49.13.16.193 ↩ static.193.16.13.49.clients.your-server.de
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ 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
SOA Record
Raw SOA
ns1100.ui-dns.de hostmaster.1und1.de 2016020879 28800 7200 604800 300
Primary NS (mname)
ns1100.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2016020879
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1100.ui-dns.com
ns1100.ui-dns.org
ns1100.ui-dns.biz
ns1100.ui-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:mail.spongo.de mx:mail.spongo.de ip4:109.91.172.229 ip4:37.24.117.59/29 ip4:37.24.117.58/29 ip4:37.24.117.61/29 ip4:37.24.117.60/29 include:spf.server-he.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 6/10
~ 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
✓ 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
4 records- brevo-code:3863b62276a4abb1604aab97910107ba
- MS=ms39457351
- google-site-verification=1l0ybcOFQWG1XOFtcJSucXDt4_QeWwx4xmeRfJAmSAg
- SPFv=spf1 a mx a:mail.spongo.de mx:mail.spongo.de ip4:109.91.172.229 ip4:37.24.117.59/29 ip4:37.24.117.58/29 ip4:37.24.117.61/29 ip4:37.24.117.60/29 include:spf.server-he.de include:spf.protection.outlook.com ~all
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