relay.firefox.com

Email Relay / Proxy
Domain Lookup › relay.firefox.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
relay.firefox.com
Yes
✓ Yes
Amazon SES
No
No
⚠ Yes
⚠ Yes
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 15:03:05 UTC · ↺ Refresh

MX Hostnames

  • inbound-smtp.us-west-2.amazonaws.com

MX Priorities

  • inbound-smtp.us-west-2.amazonaws.com: 10

A / AAAA Records

  • 151.101.65.91 (no PTR)
  • 151.101.193.91 (no PTR)
  • 151.101.1.91 (no PTR)
  • 151.101.129.91 (no PTR)
  • 2a04:4e42::347 (no PTR)
  • 2a04:4e42:600::347 (no PTR)
  • 2a04:4e42:400::347
  • 2a04:4e42:200::347

Mail Server IPs

  • 54.188.121.70 ↩ ec2-54-188-121-70.us-west-2.compute.amazonaws.com
  • 52.43.162.244 ↩ ec2-52-43-162-244.us-west-2.compute.amazonaws.com
  • 35.161.157.106 ↩ ec2-35-161-157-106.us-west-2.compute.amazonaws.com
  • 52.13.163.116 ↩ ec2-52-13-163-116.us-west-2.compute.amazonaws.com

SOA Record

Raw SOA ns-1479.awsdns-56.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1479.awsdns-56.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1998.awsdns-57.co.uk
ns-883.awsdns-46.net
ns-1479.awsdns-56.org
ns-189.awsdns-23.com

SPF Record

✓ Strict (-all)
v=spf1 include:amazonses.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected];adkim=r;aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

3 records
  • SPFv=spf1 include:amazonses.com -all
  • google-site-verification=0gcrZK82seH67egBe_R7goios1aPEFPD3qidLHTpRko
  • google-site-verification=7kS78ilWaVBw-c0-9liGgbYtFBicQee_DOEjHkk02I8
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 relay.firefox.com

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

No credit card required
Get 1,000 Free Credits