firstline.com

Valid Email Server
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
firstline.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-02 13:09:21 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mxa-00146707.gslb.pphosted.com
  • mxb-00146707.gslb.pphosted.com

MX Priorities

  • mxa-00146707.gslb.pphosted.com: 10
  • mxb-00146707.gslb.pphosted.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 67.231.151.8 ↩ mx0d-00146707.pphosted.com

SOA Record

Raw SOA a1-188.akam.net gnsoperations.cibc.com 2019091710 3600 600 604800 300
Primary NS (mname)
a1-188.akam.net
Admin Email (rname)
gnsoperations@cibc.com
Serial
2019091710
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

a18-66.akam.net
a16-65.akam.net
a11-67.akam.net
a13-64.akam.net
a26-67.akam.net
a1-188.akam.net

SPF Record

✓ Strict (-all)
v=spf1 exists:%{i}._i.%{d}._d.espf.agari-dns.net include:%{d}.5d.spf-protect.agari-dns.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

2 records
  • MS=ms16586271
  • SPFv=spf1 exists:%{i}._i.%{d}._d.espf.agari-dns.net include:%{d}.5d.spf-protect.agari-dns.net -all
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 · Customize →
See demo & docs
Deep verification
Full email verification for firstline.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits