Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
serac.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 03:18:51 UTC · ↺ Refresh
MX Hostnames
- serac-com-br.mail.protection.outlook.com
MX Priorities
- serac-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 69.49.115.40 ↩ hostedc76.carrierzone.com
Mail Server IPs
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
a.dns.gandi.net hostmaster.gandi.net 1619795089 10800 3600 604800 10800
Primary NS (mname)
a.dns.gandi.net
Admin Email (rname)
hostmaster@gandi.net
Serial
1619795089
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
c.dns.gandi.net
a.dns.gandi.net
b.dns.gandi.net
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; sp=reject; adkim=s; aspf=s; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
3 records- gMrX3GkUi3uDlncAp3BfJkc/JjxP4YX9+mXcmyGKnQVtm1ed/er8mOoU8/IhIdjMLE+qc18GHqCo8Z6zlyGWYg==
- SPFv=spf1 mx include:spf.protection.outlook.com -all
- MS=ms27665125
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