Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cordstrap.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:34:11 UTC · ↺ Refresh
MX Hostnames
- cordstrap-com.mail.protection.outlook.com
MX Priorities
- cordstrap-com.mail.protection.outlook.com: 5
A / AAAA Records
- 20.50.2.16 (no PTR)
Mail Server IPs
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 2a01:111:f403:ca09::e ↩ mail-am7pr05cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns03.2is.nl domain-admin.2is.nl 2026031201 14400 3600 1209600 3600
Primary NS (mname)
ns03.2is.nl
Admin Email (rname)
domain-admin@2is.nl
Serial
2026031201
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns04.2is.be
ns05.2is.nl
ns03.2is.nl
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:52.16.1.38 ip4:34.249.153.28 ip4:34.249.70.182 ip4:34.248.50.99 ip4:185.144.225.27 ip4:185.144.225.106 ip4:83.149.98.65 ip4:52.157.144.110 ip4:92.70.34.57 ip4:18.168.51.200 ip4:18.168.140.58 ip4:148.59.101.16 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:sendgrid.net include:servers.mcsv.net include:europe.o365.crossware.co.nz include:eu-k1.o365.crossware.co.nz include:amazonses.com -all include:spf.eu.exclaimer.net
📊 DNS lookups: 8/10
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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
8 records- 5c1c9bc92a90c6ad72dffff67941a1b1f0a5983f3c79abfbbc6abbc9cbeeee03
- apple-domain-verification=Z4mQiQF8vS0Vn5t5
- C0O0R47901
- MS=ms56778009
- SPFv=spf1 ip4:52.16.1.38 ip4:34.249.153.28 ip4:34.249.70.182 ip4:34.248.50.99 ip4:185.144.225.27 ip4:185.144.225.106 ip4:83.149.98.65 ip4:52.157.144.110 ip4:92.70.34.57 ip4:18.168.51.200 ip4:18.168.140.58 ip4:148.59.101.16 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:sendgrid.net include:servers.mcsv.net include:europe.o365.crossware.co.nz include:eu-k1.o365.crossware.co.nz include:amazonses.com -all include:spf.eu.exclaimer.net
- google-site-verification=7GSHzk2Wi-QIQukV2Xx8YTSRt60dvnO4Z44bgVdKbsk
- DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrR6fk7PXAxJshbH3rfCTQkcJ5p5n0pb2H4E8pPnWJnnn9kshUijFndXEIc3H8kUiGsWIC8bDmU7UFyZa2xhRW/80HtYnE03iMIqJ6thlOLyhQHg/qMMg+IUV//kV7D8iyzDVdX/xXcNVD/OsEpsjLUE8gksXcZSsYJWG9QzI2hQIDAQAB
- MS=C274CB15D96CAA381A4E60200030AD94F11A054E
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