Is mozilla.org a valid email domain?
Mail for mozilla.org is handled by 4 servers at Google (Gmail or Google Workspace), with aspmx.l.google.com tried first.
It is not a free provider and is not on our disposable list, so addresses here usually belong to a company, school or other organisation.
SPF is published and ends with ~all. DMARC is set to reject.
Check an email address at mozilla.org
Type the name before the @ to check a full address. No account needed.
MX records (Google (Gmail or Google Workspace))
| Priority | Mail server | Resolves to |
|---|---|---|
| 1 | aspmx.l.google.com | 142.251.127.26, 2a00:1450:4001:c21::1b |
| 5 | alt2.aspmx.l.google.com | 172.253.152.26, 2a00:1450:4010:c22::1b |
| 5 | alt1.aspmx.l.google.com | 142.250.147.26, 2a00:1450:4025:c01::1b |
| 10 | aspmx3.googlemail.com | 172.253.152.27, 2a00:1450:4010:c22::1a |
SPF
Record published
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.mozilla.com include:_spf.google.com include:spf.fundraiseup.com ~allDMARC
Policy: reject
v=DMARC1; p=reject; pct=100; adkim=r; aspf=r; rua=mailto:dmarc_agg@vali.email,mailto:dmarc@mozilla.com
Disposable?
No, not on our disposable list.
Free provider?
No, not a known free provider.
What this means for your email list
What this means for addresses at this domain
The domain accepts mail, but whether a given person's mailbox exists depends on that organisation. Company domains often have staff who left, role mailboxes like info@ and sales@, and sometimes catch-all rules that accept everything. Verify the individual address before you send.
Sender authentication
mozilla.org has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as mozilla.org must have SPF and DKIM set up correctly.
✨ Report summary
Sign up to get a report summary: a plain-English read of this domain's mail setup and what to do next.
Sign up to get a report summary →Frequently asked questions
- Is mozilla.org a valid email domain?
- Yes. mozilla.org publishes 4 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is mozilla.org a disposable email domain?
- No. mozilla.org is not on our disposable list. The list is updated regularly, and new throwaway domains appear all the time.
- What are the MX records for mozilla.org?
- aspmx.l.google.com (priority 1); alt2.aspmx.l.google.com (priority 5); alt1.aspmx.l.google.com (priority 5); aspmx3.googlemail.com (priority 10).
- Does mozilla.org have SPF and DMARC?
- SPF: yes, ending ~all. DMARC: yes, policy reject.