Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
dcengineering.nl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 06:37:42 UTC · ↺ Refresh
MX Hostnames
- dcengineering-nl.mail.protection.outlook.com
MX Priorities
- dcengineering-nl.mail.protection.outlook.com: 10
A / AAAA Records
- 37.46.140.5 ↩ web103.shared.hosting-login.net
Mail Server IPs
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.sqr.nl hostmaster.dcengineering.nl 2026051200 1800 1800 604800 300
Primary NS (mname)
ns1.sqr.nl
Admin Email (rname)
hostmaster@dcengineering.nl
Serial
2026051200
Refresh
1800s
Retry
1800s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1.sqr.nl
ns2.sqr.domains
ns3.sqr.cloud
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:81.22.243.84 ip4:81.22.243.88 ip4:81.22.243.104 ip4:81.22.243.105 ip4:185.22.14.80/29 a:auth-smtp.kotisivut.com include:spf.protection.outlook.com include:spf.sqr.nl -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]; 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
3 records- brevo-code:7486c3017a55061ffe5276982b308282
- MS=ms70834742
- SPFv=spf1 a mx ip4:81.22.243.84 ip4:81.22.243.88 ip4:81.22.243.104 ip4:81.22.243.105 ip4:185.22.14.80/29 a:auth-smtp.kotisivut.com include:spf.protection.outlook.com include:spf.sqr.nl -all
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