Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
strenge.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 11:19:39 UTC · ↺ Refresh
MX Hostnames
- strenge-de.mail.protection.outlook.com
MX Priorities
- strenge-de.mail.protection.outlook.com: 10
A / AAAA Records
- 185.39.221.116 ↩ cloud3-vm225.de-nserver.de
Mail Server IPs
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns04.iok.de server-providing.iok.net 2025111902 10800 3600 1209600 10800
Primary NS (mname)
ns04.iok.de
Admin Email (rname)
server-providing@iok.net
Serial
2025111902
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns04.iok.de
ns02.iok.net
ns01.iok.net
ns03.iok.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:52.157.254.210 ip4:185.39.221.116 ip4:87.130.113.62 ip4:185.39.221.231 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
5 records- MS=ms50639013
- Yqr2YeCDBEPw9K39XAF0tLNXAJFbXVUBHYOT6RU29fw1hJr94+4bCU0h2TTH0CfeyHuDxJ61Jg8KOfX0xiidkQ==
- SPFv=spf1 mx ip4:52.157.254.210 ip4:185.39.221.116 ip4:87.130.113.62 ip4:185.39.221.231 include:spf.protection.outlook.com -all
- apple-domain-verification=Xhd2jay0dIJW0wcR
- Ol60SsvMhASRl8jg8aBHpaiswgZC4x58pEQUkC/ouNvX0JBgik9bx0cGPs86y5bT/gaX9tABIe2gvIXhyP5b4w==
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