Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bissinger.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 23:52:40 UTC · ↺ Refresh
MX Hostnames
- bissinger-de.mail.protection.outlook.com
MX Priorities
- bissinger-de.mail.protection.outlook.com: 10
A / AAAA Records
- 136.243.167.153 ↩ www488.your-server.de
Mail Server IPs
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.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
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026012600 86400 10800 3600000 600
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026012600
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
600s
Nameservers (NS)
ns1.first-ns.de
robotns2.second-ns.de
robotns3.second-ns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.nl2go.com include:spf.protection.outlook.com include:spf.protection.outlook.de ip4:136.243.167.153 ip4:128.65.147.77 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;adkim=s;aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
6 records- sophos-domain-verification=a9e0f56e2aff8aa774a1e2a1e6d91fd49cdf2d26e852405a6ffdf62261d012ea
- sophos-domain-verification=eafaf8436251d43a02885e55e3e6d07d3a8e064fbb818d90f174958ff36afbb5
- SPFv=spf1 include:spf.nl2go.com include:spf.protection.outlook.com include:spf.protection.outlook.de ip4:136.243.167.153 ip4:128.65.147.77 -all
- MS=ms42008050
- brevo-code:995675f4416017b38dbe0e68ff2db96c
- ccf5a86dd8b74318baf9e55bb31ef95e
Full email verification for bissinger.de
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