Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
prefere.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 12:26:06 UTC · ↺ Refresh
MX Hostnames
- prefere-com.mail.protection.outlook.com
MX Priorities
- prefere-com.mail.protection.outlook.com: 5
A / AAAA Records
- 37.202.4.26 (no PTR)
Mail Server IPs
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.sycor.de dns.sycor.de 2025060200 86400 7200 3600000 900
Primary NS (mname)
ns1.sycor.de
Admin Email (rname)
dns@sycor.de
Serial
2025060200
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
900s
Nameservers (NS)
ns2.sycor.eu
ns3.sycor.org
ns1.sycor.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:154.14.111.195 ip4:80.120.131.98 ip4:195.145.196.154 ip4:154.14.101.19 ip4:62.96.183.94 ip4:154.14.55.3 ip4:80.155.7.131 ip4:154.14.55.11 ip4:154.14.87.219 ip4:213.28.21.162 ip4:212.182.198.198 ip4:154.14.240.123 ip4:154.14.106.75 ip4:195.25.87.33 ip4:213.92.217.187 ip4:154.14.82.51 ip4:89.121.17.82 ip4:154.14.253.243 ip4:188.39.175.50 ip4:154.14.214.147 ip4:50.235.194.221 ip4:209.120.160.147 -all
📊 DNS lookups: 1/10
✓ 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: 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
6 records- SPFv=spf1 include:spf.protection.outlook.com ip4:154.14.111.195 ip4:80.120.131.98 ip4:195.145.196.154 ip4:154.14.101.19 ip4:62.96.183.94 ip4:154.14.55.3 ip4:80.155.7.131 ip4:154.14.55.11 ip4:154.14.87.219 ip4:213.28.21.162 ip4:212.182.198.198 ip4:154.14.240.123 ip4:154.14.106.75 ip4:195.25.87.33 ip4:213.92.217.187 ip4:154.14.82.51 ip4:89.121.17.82 ip4:154.14.253.243 ip4:188.39.175.50 ip4:154.14.214.147 ip4:50.235.194.221 ip4:209.120.160.147 -all
- MS=ms81566472
- google-site-verification=qijCOZ4MTqzH5Eh8Hu5w-Uc2yantg1lKCJSSSLOG8hk
- D0Y1N41208
- _globalsign-domain-verification=2hj436Xwc1DArsegX9WjjYpWm5H17fRHlAJ1idQQaw
- apple-domain-verification=dIvnbVBm4VMabJml
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