Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coresdevelopment.be
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 06:36:45 UTC · ↺ Refresh
MX Hostnames
- coresdevelopment-be.mail.protection.outlook.com
MX Priorities
- coresdevelopment-be.mail.protection.outlook.com: 0
A / AAAA Records
- 5.134.5.183 ↩ 5.134.5.183.static.hosted.by.combell.com
- 2a00:1c98:1000:11a4::3:11:689e (no PTR)
Mail Server IPs
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.combell.net hostmaster.coresdevelopment.be 1770628372 10800 3600 604800 40000
Primary NS (mname)
ns3.combell.net
Admin Email (rname)
hostmaster@coresdevelopment.be
Serial
1770628372
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
40000s
Nameservers (NS)
ns4.combell.net
ns1.combell.eu
ns3.combell.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.coresdevelopment.be include:spf.protection.outlook.com include:spf.exclaimer.net include:servers.mcsv.net include:147432812.spf01.hubspotemail.net include:_spf.relay.mailprotect.be -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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- SPFv=spf1 include:spf.coresdevelopment.be include:spf.protection.outlook.com include:spf.exclaimer.net include:servers.mcsv.net include:147432812.spf01.hubspotemail.net include:_spf.relay.mailprotect.be -all
- MS=ms85693580
- d365mktkey=wx2hTeTMWcZ1tMmrH6BLtHzBf8WSp9iUB1hExNrhNJsx
- 30.08.2023
- google-site-verification=v9hxzOSLtSFurizKgI0Qlv7iNmN-D-QPibElvRsAUys
Full email verification for coresdevelopment.be
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