Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
doppelernte.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:07:01 UTC · ↺ Refresh
MX Hostnames
- doppelernte-de.mail.protection.outlook.com
- send.one.com
MX Priorities
- doppelernte-de.mail.protection.outlook.com: 0
- send.one.com: 20
A / AAAA Records
- 77.111.240.166
- 2a02:2350:5:102:8035:b4aa:94b8:cab1
Mail Server IPs
- 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
- 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
- 46.30.211.141 ↩ send.one.com
- 46.30.211.140 ↩ send.one.com
- 2a02:2350:5:20e::1
- 2a02:2350:5:20e::2
SOA Record
Raw SOA
ns01.one.com hostmaster.one.com 2026031105 14400 3600 1209600 600
Primary NS (mname)
ns01.one.com
Admin Email (rname)
hostmaster@one.com
Serial
2026031105
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns01.one.com
ns02.one.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:77.111.240.166 include:spf.protection.outlook.com include:spf.send.one.com include:146591767.spf03.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
7 records- SPFv=spf1 ip4:77.111.240.166 include:spf.protection.outlook.com include:spf.send.one.com include:146591767.spf03.hubspotemail.net -all
- EnergyExperts=02a9f3c5638fb0ae74aa330017fe16c7
- brevo-code:8b2102d06a598b307d68c975934beb96
- apple-domain-verification=45lUX32wYq9fZk93
- EnergyExperts=c6074af97ac8a4456bce8758d66ad21c
- EnergyExperts=37acdb3a0ba285efb4b6f6aec060dde5
- MS=ms82846449
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