Is mimecast.com a disposable email domain?
No: it is an organisation domain registered in 2003.
try:
- mail hosts
- service-alpha-inbound-a.mimecast.com, service-alpha-inbound-b.mimecast.com
- provider
- mimecast
- spf record
- v=spf1 redirect=aojpw1q8._spf._d.mim.ec
- dmarc policy
- reject
- dmarc record
- v=DMARC1; p=reject; rua=mailto:[email protected],mailto:74e31d82-60cd-440c-ae8a-75b8a5c2ad94@rep.uk.mimecastdmarcanalyzer.com; ruf=mailto:[email protected]; pct=100; fo=1;
- disposable domain
- no
- free consumer provider
- no
Is mimecast.com disposable?
mimecast.com is neither a disposable provider nor a consumer mailbox service, which makes it an organisation's own domain.
About the domain
Its mail is handled by Mimecast. Public registry data (RDAP) shows mimecast.com was registered on 2003-02-20, so it is about 23 years old.
How Spaw treats addresses at mimecast.com
An address at mimecast.com passes the free checks (syntax, MX, lists), so the API goes on to the mailbox-level SMTP handshake, which ends before any message is sent. The result is deliverable, risky, or undeliverable with a reason field that names the evidence.
More checks for mimecast.com
checked 2026-09-03 · sources: live-dns 2026-09-03 · disposable-domains 2026-09-02 · free-provider-domains 2026-09-02 · mx-provider-patterns 2026-09-03 · rdap-registration 2026-09-03
Need this at scale?
The Spaw API runs the same checks plus mailbox-level SMTP verification, batch and bulk endpoints, and list monitoring — 10 free lookups a month, no card required.