Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atv-tech.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 05:56:16 UTC · ↺ Refresh
MX Hostnames
- atvtech-de0i.mail.protection.outlook.com
MX Priorities
- atvtech-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 172.67.176.173 (no PTR)
- 104.21.56.39 (no PTR)
- 2606:4700:3037::6815:3827
- 2606:4700:3035::ac43:b0ad
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
paul.ns.cloudflare.com dns.cloudflare.com 2394570285 10000 2400 604800 1800
Primary NS (mname)
paul.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2394570285
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
tia.ns.cloudflare.com
paul.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:217.86.173.182 ip4:192.159.130.54 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- SPFv=spf1 ip4:217.86.173.182 ip4:192.159.130.54 include:spf.protection.outlook.com -all
- MS=ms14101039
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