Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
siqueiracastro.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 20:33:07 UTC · ↺ Refresh
MX Hostnames
- siqueiracastro-com-br.mail.protection.outlook.com
MX Priorities
- siqueiracastro-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 147.79.91.7 (no PTR)
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
leah.ns.cloudflare.com dns.cloudflare.com 2398919032 10000 2400 604800 1800
Primary NS (mname)
leah.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398919032
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
leah.ns.cloudflare.com
olof.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ip4:147.79.91.7 include:spf.emailmanager.com include:_spf.rdstation.com.br include:sendgrid.net a mx ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._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
5 records- 2e89k67suf6i94osvng2she7vq
- google-site-verification=95RVIFSI9FYJpSeaaX_Jm1kMUeZl0RuJgg4-KiQv7Go
- google-site-verification=XtPwnrQVuWSkIeit_fMquwCC3wTnS96KMQ5WRY3n1Sg
- pexip-ms-tenant-domain-verification=b0b3674c-80c3-4161-9363-e5dc28be8109
- SPFv=spf1 include:spf.protection.outlook.com ip4:147.79.91.7 include:spf.emailmanager.com include:_spf.rdstation.com.br include:sendgrid.net a mx ~all
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