service.americanexpress.com

Valid Email Server
Domain Lookup › service.americanexpress.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

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

Checked via [email protected] · 2026-03-17 21:48:53 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

  • mx0a-0023b801.pphosted.com
  • mx0b-0023b801.pphosted.com

MX Priorities

  • mx0b-0023b801.pphosted.com: 10
  • mx0a-0023b801.pphosted.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 148.163.153.108 ↩ mx0b-0023b801.pphosted.com
  • 148.163.149.109 ↩ mx0a-0023b801.pphosted.com

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Strict (-all)
v=spf1 ip4:148.173.88.35 ip4:148.173.88.36 ip4:148.173.96.177 ip4:148.173.96.178 ip4:139.71.74.17 ip4:139.71.74.18 ip4:139.71.74.88/31 ip4:139.71.74.50/31 ip4:139.71.1.82/31 ip4:139.71.95.82/31 ip4:139.71.95.76/31 ip4:139.71.95.78 ip4:139.71.1.76/31 ip4:139.71.1.78 include:rnmk.com -all
📊 DNS lookups: 1/10
✓ 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
  • google-site-verification=_lbje1eYrr0dkCR7wAJBJ-TMzs6BQ3w5CGmqgeVPM_M
  • SPFv=spf1 ip4:148.173.88.35 ip4:148.173.88.36 ip4:148.173.96.177 ip4:148.173.96.178 ip4:139.71.74.17 ip4:139.71.74.18 ip4:139.71.74.88/31 ip4:139.71.74.50/31 ip4:139.71.1.82/31 ip4:139.71.95.82/31 ip4:139.71.95.76/31 ip4:139.71.95.78 ip4:139.71.1.76/31 ip4:139.71.1.78 include:rnmk.com -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 service.americanexpress.com

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

No credit card required
Get 1,000 Free Credits