Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rembe-rtc.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 18:29:46 UTC · ↺ Refresh
MX Hostnames
- rembertc-de01c.mail.protection.outlook.com
MX Priorities
- rembertc-de01c.mail.protection.outlook.com: 10
A / AAAA Records
- 92.205.192.180 ↩ mc22134.ispgateway.de
Mail Server IPs
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
SOA Record
Raw SOA
fred.ns.cloudflare.com dns.cloudflare.com 2398289199 10000 2400 604800 1800
Primary NS (mname)
fred.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398289199
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
melinda.ns.cloudflare.com
fred.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a:dd14124.kasserver.com ip4:213.133.121.31 ip4:217.6.154.34 ip4:217.6.154.36 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- 1jpgesv3qb5aas2mq1lds5ifvm
- HOD3OTDjESh43XYSpqGiB8b5nX52kYR6+Zy2Qv3sHAd8RAIcvC7ZPw5D5LUCj1/84TsLGGYbqBsgni2WUAYuwg==
- MS=ms49234068
- ojg01vco88mmleb3olennbfbv
- ps2dbi08bged7b5t1m4qg0nj58
- SPFv=spf1 a:dd14124.kasserver.com ip4:213.133.121.31 ip4:217.6.154.34 ip4:217.6.154.36 include:spf.protection.outlook.com -all
Full email verification for rembe-rtc.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits