Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
core4ce.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 05:12:19 UTC · ↺ Refresh
MX Hostnames
- core4ce.mail.protection.office365.us
MX Priorities
- core4ce.mail.protection.office365.us: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 23.103.199.170 ↩ mail-cy1usg020170.inbound.protection.outlook.com
- 23.103.199.138 ↩ mail-bn3usg020138.inbound.protection.outlook.com
- 2001:489a:2202:4::10 ↩ mail-bn3usg020010.inbound.protection.outlook.com
- 2001:489a:2202:5::10 ↩ mail-cy1usg020010.inbound.protection.outlook.com
SOA Record
Raw SOA
ns65.domaincontrol.com dns.jomax.net 2026022405 28800 7200 604800 600
Primary NS (mname)
ns65.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026022405
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns66.domaincontrol.com
ns65.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.office365.us include:docebosaas.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;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
default._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
9 records- atlassian-domain-verification=DwHMEy7ezq1dkGmOUXWYX4Op2hjgggd0OESQ2W9v2V2Drgi3TiPmRiTmYm0zs852
- atlassian-domain-verification=NmWY6ScfciWlgjzsbzioHMuc6XD2E0Q9zajaXtS/YXQKAhPibjaOSXHeGwdN6u6M
- google-site-verification=aF67alsJWil7rlwhDJ8lSQA3RJCWAI299atxXaoHmrM
- google-site-verification=CrjpibsCkcCMEFjcSmaqxEm7OIPb3HW6dK06sguKQUQ
- SPFv=spf1 include:spf.protection.office365.us include:docebosaas.com -all
- MS=ms88990792
- _6amo6rherq9pvd8ux23u8t1aei9lu4y
- adobe-idp-site-verification=8a3dc5161d5f9753856a5fa022f24afa503f583d1955dc01afe691f62b2cfaa3
- apple-domain-verification=xkk9C3rgh6WIyn2P
Full email verification for core4ce.com
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