Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
opalpublicidade.pt
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 04:43:11 UTC · ↺ Refresh
MX Hostnames
- opalpublicidade-pt.mail.protection.outlook.com
MX Priorities
- opalpublicidade-pt.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.89.13 (no PTR)
- 172.67.155.130 (no PTR)
- 2606:4700:3036::ac43:9b82
- 2606:4700:3033::6815:590d
Mail Server IPs
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ned.ns.cloudflare.com dns.cloudflare.com 2396895267 10000 2400 604800 1800
Primary NS (mname)
ned.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396895267
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ned.ns.cloudflare.com
rosalie.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:178.166.73.185/32 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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
1 record- SPFv=spf1 ip4:178.166.73.185/32 include:spf.protection.outlook.com -all
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