rembe-rtc.de

Valid Email Server

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

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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
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