Is discover.com a valid email domain?
discover.com can receive email. It publishes 2 mail servers, run by Proofpoint, and the first choice is mx0a-001b4103.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 quarantine.
Check an email address at discover.com
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MX records (Proofpoint)
| Priority | Mail server | Resolves to |
|---|---|---|
| 10 | mx0a-001b4103.pphosted.com | 148.163.133.70 |
| 10 | mx0b-001b4103.pphosted.com | 148.163.137.70 |
SPF
Record published
v=spf1 exists:%{i}._i.%{d}._d.espf.agari-dns.net. include:%{d}.07.spf-protect.agari-dns.net. -allDMARC
Policy: quarantine
v=DMARC1; p=quarantine; fo=1; ri=3600; rua=mailto:capital-one@rua.agari.com; ruf=mailto:capital-one@ruf.agari.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
discover.com uses a DMARC quarantine policy: mail that fails authentication is sent to spam. That is a sound middle step, and a good sign the owner looks after their email setup.
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Sign up to get a report summary →Frequently asked questions
- Is discover.com a valid email domain?
- Yes. discover.com publishes 2 MX records and can receive email. Whether a particular mailbox exists is a separate question that only a mailbox check can answer.
- Is discover.com a disposable email domain?
- No. discover.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 discover.com?
- mx0a-001b4103.pphosted.com (priority 10); mx0b-001b4103.pphosted.com (priority 10).
- Does discover.com have SPF and DMARC?
- SPF: yes, ending -all. DMARC: yes, policy quarantine.