Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mainterra.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 12:52:32 UTC · ↺ Refresh
MX Hostnames
- mainterra-de.mail.protection.outlook.com
MX Priorities
- mainterra-de.mail.protection.outlook.com: 10
A / AAAA Records
- 65.21.129.22 ↩ jazz-shared.ferebee.net
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.ferebee.net hostmaster.ferebee.net 2017101511 14801 7201 608801 40001
Primary NS (mname)
ns1.ferebee.net
Admin Email (rname)
hostmaster@ferebee.net
Serial
2017101511
Refresh
14801s
Retry
7201s
Expire
608801s
Minimum TTL
40001s
Nameservers (NS)
ns1.ferebee.net
ns2.ferebee.net
SPF Record
✓ Strict (-all)
v=spf1 a:mail.ferebee.net a:station.ferebee.net a:office.mainterra.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ 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- SPFv=spf1 a:mail.ferebee.net a:station.ferebee.net a:office.mainterra.de include:spf.protection.outlook.com -all
- MS=ms83970735
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