Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optoprim.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 11:48:00 UTC · ↺ Refresh
MX Hostnames
- optoprim-com.mail.protection.outlook.com
MX Priorities
- optoprim-com.mail.protection.outlook.com: 0
A / AAAA Records
- 92.113.28.236 (no PTR)
Mail Server IPs
- 52.101.166.0 ↩ mail-pa5p264cu00200.inbound.protection.outlook.com
- 52.101.166.2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 52.101.166.1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 52.101.164.0 ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca25:: ↩ mail-pa5p264cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca1e:: ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca25::2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca25::1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.amen.fr root.amen.fr 2026010606 86400 7200 2592000 300
Primary NS (mname)
ns1.amen.fr
Admin Email (rname)
root@amen.fr
Serial
2026010606
Refresh
86400s
Retry
7200s
Expire
2592000s
Minimum TTL
300s
Nameservers (NS)
ns2.amen.fr
ns1.amen.fr
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 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
4 records- SPFv=spf1 include:spf.protection.outlook.com -all
- @=55d64ab51a1de684b324165b4231ea46
- www=d27452a59375cc7f08b2eb59c45fd799
- MS=ms50729943
Full email verification for optoprim.com
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