Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbuszoo.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 02:03:22 UTC · ↺ Refresh
MX Hostnames
- columbuszoo-org.mail.protection.outlook.com
MX Priorities
- columbuszoo-org.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.3 (no PTR)
- 2620:12a:8000::3 (no PTR)
- 2620:12a:8001::3
Mail Server IPs
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns05.domaincontrol.com dns.jomax.net 2026012600 28800 7200 604800 3600
Primary NS (mname)
ns05.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026012600
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns06.domaincontrol.com
ns05.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:74.219.149.34 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:servers.mcsv.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
7 records- SPFv=spf1 ip4:74.219.149.34 include:spf.protection.outlook.com include:outboundmail.blackbaud.net include:servers.mcsv.net ~all
- monday-com-verification=DAR8EUAiowSGnUHls1yABpBaAGa6dHz9GzSjMew_NmM
- apple-domain-verification=uc3WMvUFc4RMo3yf
- google-site-verification=XK7w236-QxgGBhucQT7bhrDWUEPdrgAX3PTA5H2bw_M
- google-site-verification=YcNM0SOhA4wjWXmZWLJIORSW1yllzncD0mRBVR3mKcI
- MS=ms76181850
- V3tPAJzt67V73x1MXye4lULARzOPOpvCDkLBWJQ3Zn+NMEwiKMSiOMee3+66Puwn83cCNTKRHcVHdv21bFwR9w==
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for columbuszoo.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits