Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
delkorsystems.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 08:11:36 UTC · ↺ Refresh
MX Hostnames
- delkorsystems-com.mail.protection.outlook.com
MX Priorities
- delkorsystems-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.22.93 (no PTR)
- 172.67.203.200 (no PTR)
- 2606:4700:3037::ac43:cbc8
- 2606:4700:3031::6815:165d
Mail Server IPs
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
april.ns.cloudflare.com dns.cloudflare.com 2396994549 10000 2400 604800 1800
Primary NS (mname)
april.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396994549
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
doug.ns.cloudflare.com
april.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:208.86.168.7/32 ip4:174.128.1.0/28 ip4:206.152.14.0/24 ip4:174.128.1.123/32 ip4:208.86.170.134/32 ip4:208.86.170.218/32 ip4:52.186.121.110 ip4:198.37.144.16 ip4:192.254.115.42 ip4:160.109.226.99 include:spf.protection.outlook.com include:2673369.spf05.hubspotemail.net include:spf.US.exclaimer.net include:inforcloudsuite.com include:infor.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
10 records- google-site-verification=442y2gfLTvlcq5vxSlIc7atBXMVCVT3KHq1Y_Y1yb-0
- google-site-verification=WZu_TDPdbbeQobIwRtbjnQ8k1XI1br6RECWDv7URgeg
- google-site-verification=k_q_vvTIzm9oPSAvUZjYzVtoL2Yw7z-NtRuGtbnCGWU
- include:spf.exclaimer.net-all
- infor-cloudsuite-domain-verification=FK5JLTVVY5LZRWBPZBNKFBHUBJYSGQQJU5E4HKJRFTKVYA6TRKDD3AY6T46J29M7
- SPFv=spf1 ip4:208.86.168.7/32 ip4:174.128.1.0/28 ip4:206.152.14.0/24 ip4:174.128.1.123/32 ip4:208.86.170.134/32 ip4:208.86.170.218/32 ip4:52.186.121.110 ip4:198.37.144.16 ip4:192.254.115.42 ip4:160.109.226.99 include:spf.protection.outlook.com include:2673369.spf05.hubspotemail.net include:spf.US.exclaimer.net include:inforcloudsuite.com include:infor.com -all
- MS=ms85298551
- ZOOM_verify_dzt8SPE8cOXePIhdEKroIW
- apple-domain-verification=49rL2ZA3sEJXyclk
- autodesk-domain-verification=mBxJkz2aFx9lqlJAr9V4
Full email verification for delkorsystems.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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