Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
seisystems.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 08:51:57 UTC · ↺ Refresh
MX Hostnames
- seisystems-com.mail.eo.outlook.com
MX Priorities
- seisystems-com.mail.eo.outlook.com: 5
A / AAAA Records
- 104.21.65.57 (no PTR)
- 172.67.188.243 (no PTR)
- 2606:4700:3031::6815:4139
- 2606:4700:3036::ac43:bcf3
Mail Server IPs
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
damiete.ns.cloudflare.com dns.cloudflare.com 2399242167 10000 2400 604800 1800
Primary NS (mname)
damiete.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399242167
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
damiete.ns.cloudflare.com
natasha.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:outlook.com ~all
- 8782n0u8ogddim6r8j90s6c5am
- MS=ms64215392
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