Live data โ DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: โก live
Checker: โก live
welcome.americanexpress.com
Yes
โ Yes
Unknown
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-03-20 14:42:45 UTC ยท โบ Refresh
MX Hostnames
- extmta2ipc1.americanexpress.com
- extmta1ipc2.americanexpress.com
- extmta1ipc1.americanexpress.com
- extmta2ipc2.americanexpress.com
MX Priorities
- extmta1ipc2.americanexpress.com: 40
- extmta2ipc1.americanexpress.com: 40
- extmta1ipc1.americanexpress.com: 40
- extmta2ipc2.americanexpress.com: 40
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 139.71.11.9 โฉ extmta1ipc2.americanexpress.com
- 139.71.106.170 โฉ extmta2ipc1.americanexpress.com
- 139.71.106.169 โฉ extmta1ipc1.americanexpress.com
- 139.71.11.10 โฉ extmta2ipc2.americanexpress.com
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
โ Strict (-all)
v=spf1 mx ip4:148.173.96.86 ip4:148.173.96.85 ip4:148.173.91.84 ip4:148.173.91.83 ip4:139.71.106.169 ip4:139.71.106.170 ip4:139.71.11.9 ip4:139.71.11.10 -all
๐ DNS lookups: 1/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
โ Reject โ strongest protection
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
๐ง Reports โ mailto:[email protected],mailto:[email protected]
DKIM Selectors
โ None detectedNo DKIM records found for common selectors โ 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
3 records- google-site-verification=TPPVkwLhwOIiBNKhw5Bu54_5d7vXO10p9nPkUCfyWxA
- google-site-verification=qGjv75qvzfJTa-zfrkKORN-DZFkOb9pNTKyZ-XCoNqg
- SPFv=spf1 mx ip4:148.173.96.86 ip4:148.173.96.85 ip4:148.173.91.84 ip4:148.173.91.83 ip4:139.71.106.169 ip4:139.71.106.170 ip4:139.71.11.9 ip4:139.71.11.10 -all
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for welcome.americanexpress.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits