Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sr-elektro.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 18:26:46 UTC · ↺ Refresh
MX Hostnames
- srelektro-de0e.mail.protection.outlook.com
MX Priorities
- srelektro-de0e.mail.protection.outlook.com: 10
A / AAAA Records
- 213.133.104.21 ↩ www21.your-server.de
Mail Server IPs
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.your-server.de dns.hetzner.com 2026031700 10000 1800 604800 7200
Primary NS (mname)
ns1.your-server.de
Admin Email (rname)
dns@hetzner.com
Serial
2026031700
Refresh
10000s
Retry
1800s
Expire
604800s
Minimum TTL
7200s
Nameservers (NS)
ns.second-ns.com
ns1.your-server.de
ns3.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
2 records- MS=ms19178924
- SPFv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all
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