MailSure

Is hashicorp.com a valid email domain?

Organisation domainChecked 2026-11-06

hashicorp.com has working mail routing: 2 MX records pointing to Proofpoint, led by mx0b-001b2d05.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.

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MX records (Proofpoint)

PriorityMail serverResolves to
5mx0b-001b2d05.pphosted.com205.220.172.48
5mx0a-001b2d05.pphosted.com205.220.161.114

SPF

Record published

v=spf1 include:hashicorp.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.hashicorp.com ~all

DMARC

Policy: reject

v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email; ruf=mailto:team-corpsec@hashicorp.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

hashicorp.com looks like an organisation's own domain. Those are usually good leads, and also where bounces come from: people change jobs and mailboxes get closed. Checking each address, including whether the server accepts any recipient, avoids damaging your sender reputation.

Sender authentication

hashicorp.com has a strict DMARC policy (reject): mail that fails authentication is refused, which protects its brand from spoofing and means anyone sending as hashicorp.com must have SPF and DKIM set up correctly.

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Frequently asked questions

Is hashicorp.com a valid email domain?
Yes. hashicorp.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 hashicorp.com a disposable email domain?
No. hashicorp.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 hashicorp.com?
mx0b-001b2d05.pphosted.com (priority 5); mx0a-001b2d05.pphosted.com (priority 5).
Does hashicorp.com have SPF and DMARC?
SPF: yes, ending ~all. DMARC: yes, policy reject.

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