Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbiabankonline.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 13:22:45 UTC · ↺ Refresh
MX Hostnames
- mxb-00376801.gslb.pphosted.com
- mxa-00376801.gslb.pphosted.com
MX Priorities
- mxb-00376801.gslb.pphosted.com: 5
- mxa-00376801.gslb.pphosted.com: 10
A / AAAA Records
- 104.20.47.34 (no PTR)
- 172.66.148.37 (no PTR)
- 2606:4700:10::6814:2f22 (no PTR)
- 2606:4700:10::ac42:9425 (no PTR)
Mail Server IPs
- 148.163.141.242 ↩ mx0b-00376801.pphosted.com
SOA Record
Raw SOA
ns1.columbiabankonline.com dns.cloudflare.com 2398724347 10000 2400 604800 1800
Primary NS (mname)
ns1.columbiabankonline.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398724347
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns1.columbiabankonline.com
ns2.columbiabankonline.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
12 records- DMARCv=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
- MS=245FC2CE78867D6DE8A9003765F2592951E73752
- apple-domain-verification=LPfSFlbI3vwN0tdr
- DKIMv=DKIM1;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0EvxiJ7G7lANo40rv1kXpslN8E7fx/bzBMiMJBLgAYsZOR640gXmFK4Il4oXsHwSXvdXffM95YkJp/Y8IckzCSXADQMwE/BC3tUo3EPmM7lH+x9Kor++EdIFqH+asa1XSOwY14aVvycfagSDabT2LRc4EAZX4XgPXoOK6/vRS+Ekn+zU0VTxyIf7Ii01IR4pBJDOSf3y9nDcvLXdJ6KGvNWkB4aKnriF5rfLLDE1LKNUHabwebZ6ibaYjkStb2Ege7D2EcXF/YB461PCItr7OiKudChf4FWmKY+B2NbfR//EnfSSwciBGM8+yasHalDgelxz53Z51eu5McnLP9OEQQIDAQAB;t=s
- atlassian-domain-verification=0vL3gkhN0o1mItFwKlEp85nlSmvJc5nFwh0BKOlSMJvA1piY36eHIC2V540jxXgJ
- cisco-ci-domain-verification=26968c51e82370ad672ba1c00c51b4628af2f431468cb75743a48517908f5b7d
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- jrb4ol82gbvfuo73teussul2sm
- scnv-verification=06b8da8e7da0ce6c7a5423451014a69e:07eaae919d4f8c2037ad82982d2ebb3d:b8b63fb8af924b488f0687d94a0b868d
- MS=ms99970616
- atlassian-sending-domain-verification=d68f27a7-a02b-4558-a413-804b5f875fb1
- m0rtibd5siqqoijj217t4okpe0
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 columbiabankonline.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits