Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbia.co.il
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 05:41:40 UTC · ↺ Refresh
MX Hostnames
- columbia-co-il.mail.protection.outlook.com
MX Priorities
- columbia-co-il.mail.protection.outlook.com: 0
A / AAAA Records
- 23.227.38.65 ↩ myshopify.com
Mail Server IPs
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns1.ultradns.net jspiegel.columbia.com 2013051087 10800 3600 2592000 86400
Primary NS (mname)
pdns1.ultradns.net
Admin Email (rname)
jspiegel@columbia.com
Serial
2013051087
Refresh
10800s
Retry
3600s
Expire
2592000s
Minimum TTL
86400s
Nameservers (NS)
pdns5.ultradns.org
pdns6.ultradns.org
pdns1.ultradns.net
pdns2.ultradns.net
pdns3.ultradns.org
pdns4.ultradns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:shops.shopify.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- google-site-verification=OvHLE15zcR0Ne5wriKCDqn9dvDlJhD6dUa5kb3NxzP8
- google-site-verification=ljiQinro3ENF7XfQygza9RccgFdmI4mHO7_KLTw84L8
- SPFv=spf1 include:spf.protection.outlook.com include:shops.shopify.com -all
- MS=ms87571451
- facebook-domain-verification=uo84s40o6aa3t0ce7hqissdjil5zi1
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