relay.firefox.com
Detected Mail Infrastructure: Email Forwarding Service
Primary: inbound-smtp.us-west-2.amazonaws.com
Enforces domain sender policy
MailVeri Intelligence Assessment for relay.firefox.com
Verify an email address at relay.firefox.com
Test if a specific recipient mailbox exists and can receive messages without sending any actual email.
Need to clean email lists containing @relay.firefox.com?
DNS checks confirm mail server availability, but cannot detect full inboxes, deleted mailboxes, or stealth spam traps. MailVeri confirms each mailbox can receive mail before you send with 99% accuracy, so you keep bounce rates under 2% and protect your sender reputation.
Mail Exchanger (MX) Records
Active inbound mail routes resolved from authoritative DNS:
SPF & DMARC Authentication
Sender Policy Framework (SPF):
Domain-based Message Authentication (DMARC):
Frequently Asked Questions about relay.firefox.com
Q Is relay.firefox.com a disposable email domain?
No. relay.firefox.com is a standard forwarding email domain powered by Email Forwarding Service. It is not an ephemeral or disposable burner service.
Q What mail servers (MX records) handle email for relay.firefox.com?
Emails addressed to @relay.firefox.com are processed by 1 authoritative mail exchanger(s), including inbound-smtp.us-west-2.amazonaws.com (priority 10). The mail routing is handled by Email Forwarding Service.
Q Does relay.firefox.com have SPF and DMARC email security configured?
Yes. relay.firefox.com has published email authentication records. An SPF record is active (v=spf1 include:amazonses.com -all) and a DMARC policy is in place (v=DMARC1;p=quarantine;rua=mailto:[email protected];adkim=r;aspf=r), protecting the domain against sender address spoofing.
Q Should signups using @relay.firefox.com be allowed or blocked?
Signups from @relay.firefox.com originate from a privacy email forwarding service. While authentic, delivery success depends on the forwarding destination. Accept with standard deliverability checks.
Q How do I verify if an email address on relay.firefox.com exists without sending?
You can verify recipient mailboxes on relay.firefox.com in real time using the MailVeri API. It confirms the domain accepts mail, whether the mailbox exists, and catch-all status without sending any email, with 99% accuracy, so you keep bounce rates under 2% and protect your sender reputation.