Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
polyphon.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 20:06:01 UTC · ↺ Refresh
MX Hostnames
- polyphon-de.mail.protection.outlook.com
- mforward.dtag.de
MX Priorities
- polyphon-de.mail.protection.outlook.com: 10
- mforward.dtag.de: 20
A / AAAA Records
- 195.243.248.88 (no PTR)
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 194.25.242.123 ↩ mforward.dtag.de
SOA Record
Raw SOA
pns.dtag.de dns.telekom.de 2025060300 10800 3600 2419200 3600
Primary NS (mname)
pns.dtag.de
Admin Email (rname)
dns@telekom.de
Serial
2025060300
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
pns.dtag.de
ns1.telekom.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:195.243.248.64/27 include:spf.protection.outlook.com include:spf.mailjet.com -all
📊 DNS lookups: 2/10
✓ 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
✓ 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- MS=ms19286090
- SPFv=spf1 ip4:195.243.248.64/27 include:spf.protection.outlook.com include:spf.mailjet.com -all
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