Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rwi-essen.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 22:26:03 UTC · ↺ Refresh
MX Hostnames
- rwiessen-de0i.mail.protection.outlook.com
MX Priorities
- rwiessen-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 194.94.247.252 ↩ moon2.rwi-essen.de
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.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
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
sun01.rwi-essen.de hostmaster.rwi-essen.de 2026020405 14400 3600 1209600 900
Primary NS (mname)
sun01.rwi-essen.de
Admin Email (rname)
hostmaster@rwi-essen.de
Serial
2026020405
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
900s
Nameservers (NS)
deneb.dfn.de
sun01.rwi-essen.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:194.94.247.58 ip4:194.94.247.56 include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com include:spf.crsend.com ip4:85.13.152.215 ip4:194.94.247.250 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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 mx ip4:194.94.247.58 ip4:194.94.247.56 include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com include:spf.crsend.com ip4:85.13.152.215 ip4:194.94.247.250 -all
- MS=ms71593155
- sophos-domain-verification=ee1c12c077e531c76e103beed89930a8d1fd5c8c0f31a9e16005f129e53b0fde
- /VsCm9a7Zh27NUu9QNMX3KWwbtOcrZ9Xs6DWKEVC3E3ztux4lp/WSd0PtredAOknOZBx3kq5/nPi5QY8W43P/g==
- sophos-domain-verification=fd2fc777a34af8217236d6745f092fdd1d54f60f
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