Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
semco.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 02:14:37 UTC · ↺ Refresh
MX Hostnames
- semco-com-br.mail.protection.outlook.com
MX Priorities
- semco-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 51.81.106.36 ↩ chserver7.rapidcloud.com.br
Mail Server IPs
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
master.rapidcloud.com.br root.chserver7.rapidcloud.com.br 2026040205 3600 1800 1209600 86400
Primary NS (mname)
master.rapidcloud.com.br
Admin Email (rname)
root@chserver7.rapidcloud.com.br
Serial
2026040205
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
master.rapidcloud.com.br
slave.rapidcloud.com.br
edge.rapidcloud.com.br
SPF Record
✓ Strict (-all)
v=spf1 ip4:51.81.106.36 include:spf-c.mailbaby.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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 ip4:51.81.106.36 include:spf-c.mailbaby.net include:spf.protection.outlook.com -all
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