Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbiasc.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 03:36:26 UTC · ↺ Refresh
MX Hostnames
- columbiasc-edu.mail.protection.outlook.com
MX Priorities
- columbiasc-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 216.59.22.60 ↩ ip.dartpoints.com
Mail Server IPs
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns05.domaincontrol.com dns.jomax.net 2026020302 28800 7200 604800 600
Primary NS (mname)
pdns05.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026020302
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns06.domaincontrol.com
pdns05.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf1.columbiasc.edu include:spf2.columbiasc.edu ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=90; rua=mailto:[email protected]; sp=none; aspf=r; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 90% of failing messages only
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
9 records- bfut11gs9qnou2skhad59rppd2
- g2s8t3tpvq012mi6l4k6pi308q
- SPFv=spf1 include:spf1.columbiasc.edu include:spf2.columbiasc.edu ~all
- j01pfeci01ojcuavj8ce2mgo9n
- q5ipsa8mv956l3r2crbj4lrjvm
- b38phel7a9vnq189qlljd3qbm6
- MS=MS78414171
- google-site-verification=ifiJpsyYwHtCdusRyAGDC6602d003C_FveUyCOYYA-w
- JC/RB7zyGhvNsQea+zZ0ly3NRBbWuBsqsgIypwHmR2hwyFJOqVPR1uqgEhAjaShnp5hewaZZZE9V6KAr6j7LQw==
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