Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optiqum.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 04:25:19 UTC · ↺ Refresh
MX Hostnames
- optiqum-de.mail.protection.outlook.com
MX Priorities
- optiqum-de.mail.protection.outlook.com: 10
A / AAAA Records
- 13.81.55.79 (no PTR)
Mail Server IPs
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1a.dodns.net hostmaster.optiqum.de 2024062613 3600 1800 1209600 36000
Primary NS (mname)
ns1a.dodns.net
Admin Email (rname)
hostmaster@optiqum.de
Serial
2024062613
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
36000s
Nameservers (NS)
ns2a.dodns.net
ns1a.dodns.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.rhein-consulting.de include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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 include:_spf.rhein-consulting.de include:spf.protection.outlook.com -all
- apple-domain-verification=Y5RYT04IQXYue6BN
- RFdQhkPGJ2b/w/+r5GzDVI4B8FLNJHnk7v6bJ1jX6DQdlxfWpNHeshNcMHshE2y9RJpGidW3rqfUIjQLxYP7UA==
- google-site-verification=N0HhjP7aR8OLEB8NKRzb_tybI6YKQ9m6FBXx85QQr38
- 429bb4d8b3a390e0395162603b339af4
Full email verification for optiqum.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits