Is pfizer.com a valid email domain?
pfizer.com has working mail routing: 4 MX records pointing to Proofpoint, led by mxb-00013f02.gslb.pphosted.com.
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 pfizer.com
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MX records (Proofpoint)
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | mxb-00013f02.gslb.pphosted.com | 208.84.65.12 |
| 10 | mxa-00013f02.gslb.pphosted.com | 208.84.65.12 |
| 50 | mx0a-00013f02.pphosted.com | 208.84.65.12 |
| 50 | mx0b-00013f02.pphosted.com | 208.86.201.12 |
SPF
Record published
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:_spf.pfizer.com include:spf1.pfizer.com include:_spf2.pfizer.com include:_spf3.pfizer.com include:mktomail.com include:amazonses.com -allDMARC
Policy: reject
v=DMARC1;p=reject;fo=1;rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc.rua@pfizer.com;ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc.ruf@pfizer.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
pfizer.com has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as pfizer.com must have SPF and DKIM set up correctly.
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Sign up to get a report summary →Frequently asked questions
- Is pfizer.com a valid email domain?
- Yes. pfizer.com 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 pfizer.com a disposable email domain?
- No. pfizer.com 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 pfizer.com?
- mxb-00013f02.gslb.pphosted.com (priority 10); mxa-00013f02.gslb.pphosted.com (priority 10); mx0a-00013f02.pphosted.com (priority 50); mx0b-00013f02.pphosted.com (priority 50).
- Does pfizer.com have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy reject.