Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
seibconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 07:18:22 UTC · ↺ Refresh
MX Hostnames
- seibconstruction-com.mail.protection.outlook.com
MX Priorities
- seibconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.196.25 (no PTR)
- 104.21.76.140 (no PTR)
- 2606:4700:3035::ac43:c419
- 2606:4700:3030::6815:4c8c
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
sri.ns.cloudflare.com dns.cloudflare.com 2399703575 10000 2400 604800 1800
Primary NS (mname)
sri.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399703575
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sri.ns.cloudflare.com
vera.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:181.224.136.132 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- brevo-code:b311efcb9cef90c5b52f2c2dbe635ff7
- google-site-verification=omV4qXbq0DX24BrF3cL_U4yp5pgGJd6etuz844-XqeM
- SPFv=spf1 ip4:181.224.136.132 include:spf.protection.outlook.com -all
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