a2energie.de

Valid Email Server
Domain Lookup › a2energie.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
a2energie.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 12:33:48 UTC · ↺ Refresh

MX Hostnames

  • a2energie-de.mail.protection.outlook.com

MX Priorities

  • a2energie-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 134.119.224.238 ↩ mc20999.ispgateway.de

Mail Server IPs

  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com

SOA Record

Raw SOA ns1057.ui-dns.org hostmaster.kundenserver.de 2016071820 28800 7200 604800 300
Primary NS (mname)
ns1057.ui-dns.org
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2016071820
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1057.ui-dns.de
ns1057.ui-dns.biz
ns1057.ui-dns.com
ns1057.ui-dns.org

SPF Record

✓ Strict (-all)
v=spf1 a mx ip4:134.119.224.238 ip6:2a00:116a:10e:6e80:: include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

3 records
  • 6scij2qnjfrqgt0jk04p37d1js
  • SPFv=spf1 a mx ip4:134.119.224.238 ip6:2a00:116a:10e:6e80:: include:spf.protection.outlook.com -all
  • google-site-verification=xhCJsvyASlciavhKb8RODCDfm_xht-DbgwLUFDkW5y4
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