Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
samarco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 07:03:52 UTC · ↺ Refresh
MX Hostnames
- samarco-com.mail.protection.outlook.com
MX Priorities
- samarco-com.mail.protection.outlook.com: 10
A / AAAA Records
- 40.71.11.182 (no PTR)
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-03.azure-dns.com hostmaster.samarco.com 2022112501 7200 86400 1382400 3600
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
hostmaster@samarco.com
Serial
2022112501
Refresh
7200s
Retry
86400s
Expire
1382400s
Minimum TTL
3600s
Nameservers (NS)
ns3-03.azure-dns.org
ns4-03.azure-dns.info
ns1-03.azure-dns.com
ns2-03.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com ip4:200.241.4.185/32 ip4:200.241.4.164/32 ip4:200.241.4.160/32 ip4:200.241.4.161/32 ip4:189.52.16.167/32 include:_spf.emailmkt.correio.ws include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx include:spf.protection.outlook.com ip4:200.241.4.185/32 ip4:200.241.4.164/32 ip4:200.241.4.160/32 ip4:200.241.4.161/32 ip4:189.52.16.167/32 include:_spf.emailmkt.correio.ws include:sendgrid.net -all
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