Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
retol.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 03:06:52 UTC · ↺ Refresh
MX Hostnames
- retol-de.mail.protection.outlook.com
MX Priorities
- retol-de.mail.protection.outlook.com: 0
A / AAAA Records
- 185.88.215.23 ↩ srv-a-io.c-1309.maxcluster.net
- 2a00:f48:1008::215:23:10 ↩ srv-a-io.c-1309.maxcluster.net
Mail Server IPs
- 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
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.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
SOA Record
Raw SOA
nameserver-1-io.maxcluster.net info.maxcluster.net 2025090101 3600 1000 1209600 600
Primary NS (mname)
nameserver-1-io.maxcluster.net
Admin Email (rname)
info@maxcluster.net
Serial
2025090101
Refresh
3600s
Retry
1000s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
nameserver-1-io.maxcluster.net
nameserver-2-io.maxcluster.net
SPF Record
✓ Strict (-all)
v=spf1 include:ispgateway.de include:srv-a-io.c-1309.maxcluster.net include:spfhard.crsend.com include:spf.crsend.com include:spf.protection.outlook.com ip4:85.232.6.157 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
2 records- SPFv=spf1 include:ispgateway.de include:srv-a-io.c-1309.maxcluster.net include:spfhard.crsend.com include:spf.crsend.com include:spf.protection.outlook.com ip4:85.232.6.157 -all
- 5uv/A+lRh5oLy8USUU5/DUfDvSJwEJdw35tagCKf5kWQoWsN7EmSvT3zhcsqjOmHMCtpDMgns4z+kbHq0tKGKA==
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