firstoptionbank.com

Valid Email Server
Domain Lookup › firstoptionbank.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
firstoptionbank.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 20:27:48 UTC · ↺ Refresh

MX Hostnames

  • firstoptionbank-com.mail.protection.outlook.com

MX Priorities

  • firstoptionbank-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 172.67.152.207 (no PTR)
  • 104.21.12.166 (no PTR)
  • 2606:4700:3031::ac43:98cf
  • 2606:4700:3035::6815:ca6

Mail Server IPs

  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com

SOA Record

Raw SOA gina.ns.cloudflare.com dns.cloudflare.com 2398306997 10000 2400 604800 1800
Primary NS (mname)
gina.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398306997
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

max.ns.cloudflare.com
gina.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:156.55.138.0/24 ip4:52.176.156.178 ip4:67.210.88.0/24 ip4:63.156.189.0/24 ip4:68.232.131.237 ip4:68.232.137.69 ip4:68.232.141.148 include:spf.internet-estatements.com include:fnfis.com include:spfhost.messageprovider.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • SPFv=spf1 ip4:156.55.138.0/24 ip4:52.176.156.178 ip4:67.210.88.0/24 ip4:63.156.189.0/24 ip4:68.232.131.237 ip4:68.232.137.69 ip4:68.232.141.148 include:spf.internet-estatements.com include:fnfis.com include:spfhost.messageprovider.com include:spf.protection.outlook.com -all
  • MS=ms61319338
  • _7yn6jm1hcki3aze543b5iyywqp8kuxb
  • _globalsign-domain-verification=yd7qQwPh2MJgsdLS0_lIiYH5NFiFxNWe10GyvfKJbP
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